The invention relates to an intelligent power utilization system and a test method based on a low-voltage power line carrier, which adopt a systematic verification method of multicarrier module synchronous test. In the operation process, the system allocates a logic table address of an electric energy meter according to a test scale, after the logic address of each module is completely allocated, a controller simulates a main station to issue an acquisition instruction, a test platform records data of all communication routes including a real electric meter main control module, an electric meter carrier module, a concentrator downlink communication module and a concentrator uplink module, and a test result is displayed finally by virtue of data analysis and comparison. The intelligent power utilization system can realize test on the performance of communication modules of various function units such as a system main station, an acquisition terminal and the intelligent electric meter, the fault location and the rapid reproduction function, so that a convert fault can be discovered and prevented in time, the large loss caused by the running fault of the system is avoided, and the normal work of the electric utilization information acquisition system is effectively guaranteed.