The invention discloses an interference-resistant circuit for preventing error detection in an electrical rapid pulse group of a DC electric energy meter. The interference-resistant circuit comprisesa pulse group receiving circuit, a photocoupling isolation circuit, an FPGA chip and a digital filter, wherein the pulse group receiving circuit is used for demodulating and preventing an interferencepulse group input from the circuit and an actual pulse group after superposition of to-be-measured pulse, the pulse group receiving circuit comprises an LW lowpass filter, a level pull-up circuit anda waveform shaping circuit which are sequentially connected. By the circuit, the pulse group can be effectively prevented from being conducted to a standard source low-voltage part, and effective electric energy pulse is separated under messy pulse group signals.