The multifunctional management system includes server sub system and client sub system. Server sub system includes following modules: monitoring module in use for monitoring connection request from client; image detection module for accomplishing communication between server and client to detect image and return detected result; after receiving connection request from client, the server starts up threaded for detecting image, and calls API image detection to detect images, and returns detected result back to client. Under client/server mode in connected LANs, the invention manages image filtering and IP address filtering between server and clients, solves general strategy as well as communication and interaction between server and clients, and realizes decomposition of data at IP layer and recombination of data at application layer. The system is not related to browser.