The invention belongs to the communication technology field, in particular relates to an automatic communication network monitoring system and realization method thereof. The system comprises a network management server, a communication network, and a mobile phone test terminal. The network management server are provided with a network data acquisition module and a base station connection analysis module; the communication network which is a mobile communication network arranged between the network management server and a test terminals, and the mobile phone test terminal which is a mobile phone provided with a network test terminal management module. The automatic communication network monitoring system described in the invention can fast and accurately obtain the concrete condition of network communication quality by a commercial mobile phone, has low data acquisition cost and abundant data size, and can reflect the overall performance of a wireless communication network accurately and at real time, thereby greatly shortening the period for finding and solving problems. Thus, the system provides objective basis for network planning and optimizing, provides reliable data for customer service, and is convenient for communication network maintainers while greatly saving network test cost.