diff --git a/Basis/Logger.py b/Basis/Logger.py
index 764bf9e..383cee2 100644
--- a/Basis/Logger.py
+++ b/Basis/Logger.py
@@ -6,8 +6,8 @@ import logging
 from colorlog import ColoredFormatter
 
 logFile = 'runtime.log'
-# logLevel = logging.DEBUG
-logLevel = logging.WARNING
+logLevel = logging.DEBUG
+# logLevel = logging.WARNING
 dateFormat = '%Y-%m-%d %H:%M:%S'
 logFormat = '[%(asctime)s] [%(levelname)s] %(message)s (%(module)s.%(funcName)s)'
 logging.basicConfig(
diff --git a/Basis/Manage.py b/Basis/Manage.py
new file mode 100644
index 0000000..7f5ee2b
--- /dev/null
+++ b/Basis/Manage.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+import copy
+from Basis.Logger import logging
+from Basis.Functions import genFlag
+
+
+class Task(object):
+    """ Manage global check task.
+    """
+    __tasks = {}
+    __subTasks = {}  # sub task status -> loaded / running / complete
+
+    def __init__(self):
+        logging.info('task manager start')
+
+    def addTask(self, tasks: list) -> str:  # add task to manager (multi sub tasks)
+        subTasks = {}
+        subTaskIds = []
+        for subTask in tasks:
+            subTaskId = genFlag(length = 24)  # generate sub task id (24 bytes)
+            subTaskIds.append(subTaskId)
+            subTasks[subTaskId] = {
+                'status': 'loaded',
+                'data': copy.deepcopy(subTask)
+            }
+            logging.info('add sub task %s -> %s' % (subTaskId, subTasks[subTaskId]['data']))
+        taskId = genFlag(length = 16)  # generate task id (16 bytes)
+        self.__tasks[taskId] = {  # load task
+            'sub': subTaskIds
+        }
+        self.__subTasks.update(subTasks)  # load sub tasks
+        logging.info('task %s loaded' % taskId)
+        return taskId
+
+    def isTask(self, taskId: str) -> bool:  # check if the task id exist
+        return taskId in self.__tasks
+
+    def getTask(self, taskId: str) -> dict:  # get task status (remove sub tasks when all completed)
+        if taskId not in self.__tasks:
+            logging.error('task id %s not found' % taskId)
+            raise RuntimeError('task id not found')
+        subList = self.__tasks[taskId]['sub']
+        completed = 0
+        for subTaskId in subList:
+            if self.__subTasks[subTaskId]['status'] == 'complete':  # get number of completed sub task
+                completed += 1
+        logging.debug('[%s] statistics sub task status -> %i/%i' % (taskId, completed, len(subList)))
+        if completed < len(subList):  # some sub tasks are not completed
+            logging.debug('[%s] task still running' % taskId)
+            return {
+                'done': False,
+                'total': len(subList),
+                'finish': completed,
+            }
+        logging.debug('[%s] task work complete' % taskId)  # all sub tasks completed
+        result = []
+        for subTaskId in subList:
+            subTask = self.__subTasks[subTaskId]
+            self.__subTasks.pop(subTaskId)
+            result.append(subTask['data'])
+        logging.debug('release sub tasks -> %s' % result)
+        return {
+            'done': True,
+            'result': result
+        }
+
+    def listTask(self) -> list:  # get all task ids
+        return [x for x in self.__tasks]
+
+    def popSubTask(self) -> tuple[str or None, any]:  # fetch a loaded sub task
+        for subTaskId, subTask in self.__subTasks.items():
+            if subTask['status'] != 'loaded': continue  # only get loaded sub task
+            subTask['status'] = 'running'  # set status as running
+            return subTaskId, copy.deepcopy(subTask['data'])
+        return None, None
+
+    def updateSubTask(self, subTaskId: str, subTaskData: dict) -> None:  # update sub task data when completed
+        if subTaskId not in self.__subTasks:
+            logging.error('sub task id %s not found' % subTaskId)
+            raise RuntimeError('sub task id not found')
+        self.__subTasks[subTaskId]['data'] = copy.deepcopy(subTaskData)
+        self.__subTasks[subTaskId]['status'] = 'complete'
+
+
+Manage = Task()  # global task manager
diff --git a/manageDemo.py b/manageDemo.py
new file mode 100755
index 0000000..fb71a1d
--- /dev/null
+++ b/manageDemo.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from Basis.Manage import Manage
+from Basis.Logger import logging
+
+
+taskId_1 = Manage.addTask([
+    {'test': 1},
+    {'test': 2},
+    {'test': 3},
+])
+logging.critical('task id 1 -> %s' % taskId_1)
+
+taskId_2 = Manage.addTask([
+    {'demo': 1},
+    {'demo': 2},
+    {'demo': 3},
+])
+logging.critical('task id 2 -> %s' % taskId_2)
+
+logging.critical('list task -> %s' % Manage.listTask())
+
+logging.critical('is task 1234 -> %s' % Manage.isTask('1234'))
+logging.critical('is task %s -> %s' % (taskId_1, Manage.isTask(taskId_1)))
+
+logging.critical('get task %s -> %s' % (taskId_1, Manage.getTask(taskId_1)))
+
+subTaskId_1, subTask_1 = Manage.popSubTask()
+logging.critical('pop sub task %s -> %s' % (subTaskId_1, subTask_1))
+subTaskId_2, subTask_2 = Manage.popSubTask()
+logging.critical('pop sub task %s -> %s' % (subTaskId_2, subTask_2))
+subTaskId_3, subTask_3 = Manage.popSubTask()
+logging.critical('pop sub task %s -> %s' % (subTaskId_3, subTask_3))
+
+Manage.updateSubTask(subTaskId_3, {'test': 33})
+logging.critical('update sub task %s' % subTaskId_3)
+Manage.updateSubTask(subTaskId_2, {'test': 22})
+logging.critical('update sub task %s' % subTaskId_2)
+Manage.updateSubTask(subTaskId_1, {'test': 11})
+logging.critical('update sub task %s' % subTaskId_1)
+
+logging.critical('get task %s -> %s' % (taskId_1, Manage.getTask(taskId_1)))
+
+subTaskId_4, subTask_4 = Manage.popSubTask()
+logging.critical('pop sub task %s -> %s' % (subTaskId_4, subTask_4))
+
+Manage.updateSubTask(subTaskId_4, {'demo': 2333})
+logging.critical('update sub task %s' % subTaskId_4)
+
+logging.critical('get task %s -> %s' % (taskId_2, Manage.getTask(taskId_2)))
+
+logging.critical('sub task pop -> ' + str(Manage.popSubTask()))
+logging.critical('sub task pop -> ' + str(Manage.popSubTask()))
+logging.critical('sub task pop -> ' + str(Manage.popSubTask()))
+