The invention discloses a unified monitoring system for a Prometheus monitoring strategy, and the system comprises an analysis monitoring module which carries out the explanation of the grammar configuration in a monitoring strategy file, and checks the effectiveness of grammar; a host monitoring module which is used for monitoring and updating the monitoring strategy files of the plurality of hosts in real time and enabling the updating to be consistent; an automatic loading module which is connected to the host monitoring module and is used for realizing automatic loading of Prometheus afterthe monitoring strategy file is updated and providing a rollback function; a unified entry module which is used for setting a data unified entry and storing the written data; and a page operation module which modifies the monitoring strategy file through a page and receives, displays and analyzes the information transmitted by the monitoring module. Page operation is provided, and misoperation isreduced; by checking and explaining related grammars configured for the monitoring strategy, the learning cost is reduced; and the monitoring strategies of Prometheus in multiple hosts are updated inreal time, the consistency of the monitoring strategies is kept, and a rollback function is achieved.