The present invention discloses an electricity anti-stealing detection system. The detection system comprises: an electricity anti-stealing wiring terminal, an electric energy meter and an electricityanti-stealing detection apparatus. An input end of the electricity anti-stealing wiring terminal is connected to a power supply line. A first power supply output end of the electricity anti-stealingwiring terminal is connected to a power supply input end of the electric energy meter. A second power supply output end of the electricity anti-stealing wiring terminal, a first detection signal output end of the electric energy meter and a second detection signal output end of the electric energy meter are separately connected to the electricity anti-stealing detection apparatus. The electricityanti-stealing detection apparatus is used for collecting a first electrical parameter of the second power supply output end of the electricity anti-stealing wiring terminal and a second electrical parameter of the first detection signal output end of the electric energy meter and performing comparison analysis processing; and sending an electricity stealing alarming signal when it is determined, according to a comparison result, that there is an electricity stealing phenomenon. The system provided in the present invention can be used for detecting an electricity stealing behavior more accurately, so as to effectively resolve a problem that an electricity anti-stealing problem in the prior art is single in electricity anti-stealing functions and cannot effectively prevent an electricity stealing behavior.