Abstract: In order to solve the problem of task monitoring, it is necessary to effectively capture and analyze the problems of the tasks in the core, such as the operation of a exceptional core. In the paper, a multi-core task monitoring mechanism based on cache consistency is proposed to realize the monitoring of the system resources and the operation status and stack information of the task. Then conducting the experimental test on the ZYNQ-7000 platform. In the double system mode of Linux and FreeRTOS, the results show that the mechanism can effectively monitor the multi-core system task status, provide convenience for task management and exception handling.