diff --git a/db/jtDB.db b/db/jtDB.db
index 137181b..fdbd6c2 100644
Binary files a/db/jtDB.db and b/db/jtDB.db differ
diff --git a/ui/main_window_ui.py b/ui/main_window_ui.py
index b19f399..db35e2e 100644
--- a/ui/main_window_ui.py
+++ b/ui/main_window_ui.py
@@ -108,6 +108,29 @@ class MainWindowUI(QMainWindow):
         self.task_label.setAlignment(Qt.AlignLeft)
         self.task_label.setStyleSheet("font-weight: bold; color: #333333;")
         self.task_layout.addWidget(self.task_label)
+
+                
+        # 订单行
+        self.order_layout = QHBoxLayout()
+        self.order_layout.setAlignment(Qt.AlignLeft)  # 设置整个布局左对齐
+        
+        self.order_label = QLabel("工程号")
+        self.order_label.setFont(QFont("微软雅黑", 12, QFont.Bold))
+        self.order_label.setFixedHeight(30)
+        self.order_label.setStyleSheet("padding: 0 5px; color: #333333;")
+        
+        self.order_edit = QLineEdit()
+        self.order_edit.setFixedHeight(30)
+        self.order_edit.setFixedWidth(150)
+        self.order_edit.setReadOnly(False)
+        self.order_edit.setFont(QFont("微软雅黑", 12))
+        self.order_edit.setText("")  # 设置默认订单号
+        self.order_edit.setStyleSheet("background-color: #f9f9f9; border: 1px solid #cccccc; border-radius: 3px; padding: 2px 5px;")
+        
+        self.order_layout.addWidget(self.order_label)
+        self.order_layout.addWidget(self.order_edit)
+        self.order_layout.addStretch()  # 添加弹性空间，将组件推到左侧
+        self.task_layout.addLayout(self.order_layout)
         
         # 任务表格 - 使用合并单元格实现一级二级标题
         self.task_table = QTableWidget(3, 4)  # 3行4列：一级标题行、二级标题行、数据行
@@ -148,24 +171,6 @@ class MainWindowUI(QMainWindow):
         self.task_table.setRowHeight(2, 30)  # 数据行高
         self.task_layout.addWidget(self.task_table)
         
-        # 订单行
-        self.order_layout = QHBoxLayout()
-        self.order_label = QLabel("工程号")
-        self.order_label.setFont(QFont("微软雅黑", 12, QFont.Bold))
-        self.order_label.setFixedHeight(35)
-        self.order_label.setStyleSheet("padding: 0 5px; color: #333333;")
-        
-        self.order_edit = QLineEdit()
-        self.order_edit.setFixedHeight(35)
-        self.order_edit.setReadOnly(False)
-        self.order_edit.setFont(QFont("微软雅黑", 12))
-        self.order_edit.setText("ORD-2025-001")  # 设置默认订单号
-        self.order_edit.setStyleSheet("background-color: #f9f9f9; border: 1px solid #cccccc; border-radius: 3px; padding: 2px 5px;")
-        
-        self.order_layout.addWidget(self.order_label)
-        self.order_layout.addWidget(self.order_edit)
-        self.task_layout.addLayout(self.order_layout)
-        
         self.left_layout.addWidget(self.task_frame)
         
         # 上料区 - 使用QFrame包裹，添加边框
diff --git a/ui/settings_ui.py b/ui/settings_ui.py
index 622fe21..70bb86a 100644
--- a/ui/settings_ui.py
+++ b/ui/settings_ui.py
@@ -1,7 +1,7 @@
 from PySide6.QtWidgets import (
     QWidget, QLabel, QLineEdit, QPushButton, QComboBox, QGridLayout, QHBoxLayout, QVBoxLayout,
     QTabWidget, QFrame, QFormLayout, QGroupBox, QRadioButton, QSpacerItem, QSizePolicy,
-    QTableWidget, QTableWidgetItem, QHeaderView, QSlider, QCheckBox
+    QTableWidget, QTableWidgetItem, QHeaderView, QSlider, QCheckBox, QButtonGroup
 )
 from PySide6.QtGui import QFont, QBrush, QColor
 from PySide6.QtCore import Qt, Signal, QSize
@@ -233,6 +233,34 @@ class SettingsUI(QWidget):
         self.db_type_group.setLayout(self.db_type_layout)
         self.database_layout.addWidget(self.db_type_group)
         
+        # 添加运行模式选择组
+        self.mode_group = QGroupBox("运行模式")
+        self.mode_group.setFont(self.normal_font)
+        self.mode_layout = QHBoxLayout()
+        
+        # 创建单选按钮组
+        self.mode_button_group = QButtonGroup(self)
+        
+        # 创建单机模式单选按钮
+        self.standalone_mode_radio = QRadioButton("单机模式")
+        self.standalone_mode_radio.setFont(self.normal_font)
+        self.standalone_mode_radio.setChecked(True)  # 默认选中单机模式
+        self.mode_button_group.addButton(self.standalone_mode_radio, 1)
+        
+        # 创建接口模式单选按钮
+        self.api_mode_radio = QRadioButton("接口模式")
+        self.api_mode_radio.setFont(self.normal_font)
+        self.mode_button_group.addButton(self.api_mode_radio, 2)
+        
+        # 添加单选按钮到布局
+        self.mode_layout.addWidget(QLabel("选择运行模式："))
+        self.mode_layout.addWidget(self.standalone_mode_radio)
+        self.mode_layout.addWidget(self.api_mode_radio)
+        self.mode_layout.addStretch(1)
+        
+        self.mode_group.setLayout(self.mode_layout)
+        self.database_layout.addWidget(self.mode_group)
+        
         # 数据库连接设置
         self.db_conn_group = QGroupBox("连接设置")
         self.db_conn_group.setFont(self.normal_font)
diff --git a/utils/app_mode.py b/utils/app_mode.py
new file mode 100644
index 0000000..ce7699f
--- /dev/null
+++ b/utils/app_mode.py
@@ -0,0 +1,56 @@
+import logging
+from utils.config_loader import ConfigLoader
+
+class AppMode:
+    """
+    应用运行模式工具类，用于判断当前系统是单机模式还是接口模式
+    """
+    
+    @staticmethod
+    def get_mode():
+        """
+        获取当前应用运行模式
+        
+        Returns:
+            str: 'standalone'(单机模式) 或 'api'(接口模式)
+        """
+        config_loader = ConfigLoader.get_instance()
+        return config_loader.get_app_mode()
+    
+    @staticmethod
+    def set_mode(mode):
+        """
+        设置应用运行模式
+        
+        Args:
+            mode: 'standalone'(单机模式) 或 'api'(接口模式)
+            
+        Returns:
+            bool: 是否设置成功
+        """
+        config_loader = ConfigLoader.get_instance()
+        result = config_loader.set_app_mode(mode)
+        logging.info(f"应用运行模式已设置为: {mode}")
+        return result
+    
+    @staticmethod
+    def is_standalone():
+        """
+        检查是否为单机模式
+        
+        Returns:
+            bool: True表示单机模式，False表示接口模式
+        """
+        config_loader = ConfigLoader.get_instance()
+        return config_loader.is_standalone_mode()
+    
+    @staticmethod
+    def is_api():
+        """
+        检查是否为接口模式
+        
+        Returns:
+            bool: True表示接口模式，False表示单机模式
+        """
+        config_loader = ConfigLoader.get_instance()
+        return config_loader.is_api_mode() 
\ No newline at end of file
diff --git a/utils/config_loader.py b/utils/config_loader.py
index 3a06d30..ea03147 100644
--- a/utils/config_loader.py
+++ b/utils/config_loader.py
@@ -45,7 +45,8 @@ class ConfigLoader:
                             "enable_serial_ports": False,
                             "enable_keyboard_listener": False,
                             "enable_camera": False
-                        }
+                        },
+                        "mode": "standalone"  # 默认为单机模式
                     },
                     "database": {
                         "current": "sqlite",
@@ -104,7 +105,8 @@ class ConfigLoader:
                         "enable_serial_ports": False,
                         "enable_keyboard_listener": False,
                         "enable_camera": False
-                    }
+                    },
+                    "mode": "standalone"  # 默认为单机模式
                 },
                 "database": {
                     "current": "sqlite",
@@ -179,6 +181,12 @@ class ConfigLoader:
                     if db_config.get('default') == 'pgsql':
                         db_config['default'] = 'postgresql'
                     self.save_config()
+            
+            # 检查并添加运行模式配置
+            if 'app' in self.config and 'mode' not in self.config['app']:
+                logging.info("添加运行模式配置...")
+                self.config['app']['mode'] = 'standalone'
+                self.save_config()
                     
         except Exception as e:
             logging.error(f"升级配置文件结构失败: {e}")
@@ -240,6 +248,49 @@ class ConfigLoader:
         
         # 保存配置
         return self.save_config()
+    
+    def get_app_mode(self):
+        """
+        获取应用运行模式
+        
+        Returns:
+            str: 'standalone'(单机模式) 或 'api'(接口模式)
+        """
+        return self.get_value('app.mode', 'standalone')
+    
+    def set_app_mode(self, mode):
+        """
+        设置应用运行模式
+        
+        Args:
+            mode: 'standalone'(单机模式) 或 'api'(接口模式)
+            
+        Returns:
+            bool: 是否设置成功
+        """
+        if mode not in ['standalone', 'api']:
+            logging.error(f"无效的运行模式: {mode}，必须是 'standalone' 或 'api'")
+            return False
+        
+        return self.set_value('app.mode', mode)
+    
+    def is_standalone_mode(self):
+        """
+        检查是否为单机模式
+        
+        Returns:
+            bool: True表示单机模式，False表示接口模式
+        """
+        return self.get_app_mode() == 'standalone'
+    
+    def is_api_mode(self):
+        """
+        检查是否为接口模式
+        
+        Returns:
+            bool: True表示接口模式，False表示单机模式
+        """
+        return self.get_app_mode() == 'api'
         
     def get_config(self, key):
         """
@@ -249,51 +300,44 @@ class ConfigLoader:
             key: 配置键，例如'mdz', 'cz'等
             
         Returns:
-            dict: 配置值，未找到则返回None
+            dict: 配置数据
         """
-        if 'serial' not in self.config:
-            self.config['serial'] = {}
-            
-        if key not in self.config['serial']:
-            return None
-            
-        return self.config['serial'][key]
-        
+        serial_config = self.config.get('serial', {})
+        return serial_config.get(key, {})
+    
     def set_config(self, key, config_data):
         """
         设置serial配置下的指定配置
         
         Args:
             key: 配置键，例如'mdz', 'cz'等
-            config_data: 要设置的配置数据
+            config_data: 配置数据
             
         Returns:
             bool: 是否设置成功
         """
         if 'serial' not in self.config:
             self.config['serial'] = {}
-            
-        self.config['serial'][key] = config_data
-        # 这里不保存配置，等待调用save_config方法时一并保存
-        return True
         
+        self.config['serial'][key] = config_data
+        return self.save_config()
+    
     def get_database_config(self, db_type=None):
         """
-        获取指定类型的数据库配置
+        获取数据库配置
         
         Args:
-            db_type: 数据库类型，如'sqlite', 'postgresql', 'mysql'等，不指定则使用默认配置
+            db_type: 数据库类型，如果为None则返回当前使用的数据库配置
             
         Returns:
             dict: 数据库配置
         """
-        # 如果未指定数据库类型，使用当前设置的类型
+        db_config = self.config.get('database', {})
+        db_sources = db_config.get('sources', {})
+        
+        # 如果未指定数据库类型，则使用当前配置的数据库类型
         if db_type is None:
-            db_type = self.get_value('database.default', 'sqlite')
+            db_type = db_config.get('current', 'sqlite')
         
-        # 处理pgsql和postgresql兼容
-        if db_type == 'pgsql':
-            db_type = 'postgresql'
-        
-        # 获取数据库配置
-        return self.get_value(f'database.sources.{db_type}', {}) 
\ No newline at end of file
+        # 返回指定类型的数据库配置
+        return db_sources.get(db_type, {}) 
\ No newline at end of file
diff --git a/widgets/settings_widget.py b/widgets/settings_widget.py
index 784dc81..90c7308 100644
--- a/widgets/settings_widget.py
+++ b/widgets/settings_widget.py
@@ -1,4 +1,5 @@
 from PySide6.QtWidgets import QMessageBox, QVBoxLayout
+from PySide6.QtCore import Qt
 import logging
 import json
 import os
@@ -7,6 +8,7 @@ from utils.sql_utils import SQLUtils
 from widgets.inspection_settings_widget import InspectionSettingsWidget
 from widgets.pallet_type_settings_widget import PalletTypeSettingsWidget
 from utils.config_loader import ConfigLoader
+from utils.app_mode import AppMode
 
 class SettingsWidget(SettingsUI):
     def __init__(self, parent=None):
@@ -64,6 +66,9 @@ class SettingsWidget(SettingsUI):
         # 初始化数据库类型UI状态
         self.load_db_config()
         
+        # 初始化运行模式状态
+        self.load_app_mode()
+        
         logging.info("SettingsWidget初始化完成")
         
     def connect_signals(self):
@@ -86,6 +91,43 @@ class SettingsWidget(SettingsUI):
         # 返回按钮
         if hasattr(self, 'back_button'):
             self.back_button.clicked.connect(self.back_to_main)
+            
+        # 运行模式单选按钮
+        self.standalone_mode_radio.toggled.connect(self.on_app_mode_changed)
+        self.api_mode_radio.toggled.connect(self.on_app_mode_changed)
+    
+    def load_app_mode(self):
+        """加载应用运行模式设置"""
+        try:
+            # 获取当前运行模式
+            current_mode = AppMode.get_mode()
+            
+            # 设置对应的单选按钮
+            if current_mode == 'api':
+                self.api_mode_radio.setChecked(True)
+            else:  # 默认为standalone
+                self.standalone_mode_radio.setChecked(True)
+                
+            logging.info(f"已加载应用运行模式: {current_mode}")
+        except Exception as e:
+            logging.error(f"加载应用运行模式失败: {e}")
+            # 默认选择单机模式
+            self.standalone_mode_radio.setChecked(True)
+    
+    def on_app_mode_changed(self, checked):
+        """处理运行模式变更"""
+        if not checked:  # 忽略未选中状态的信号
+            return
+            
+        try:
+            if self.standalone_mode_radio.isChecked():
+                AppMode.set_mode('standalone')
+                logging.info("已将应用运行模式设置为: 单机模式")
+            elif self.api_mode_radio.isChecked():
+                AppMode.set_mode('api')
+                logging.info("已将应用运行模式设置为: 接口模式")
+        except Exception as e:
+            logging.error(f"设置应用运行模式失败: {e}")
     
     def load_db_config(self):
         """加载数据库配置"""