The invention discloses a quick electricity card meter electricity-selling fault location method. The method includes the following steps: (1) establishing an electricity-selling test and simulation system; (2) connecting the electricity-selling test and simulation system with an SG186 marketing test system by a way of interface debugging; (3) building a loaded simulative electricity consumption environment; (4) utilizing the electricity card meter electricity-selling fault data produced in actual use as test data and carrying out multiple times of simulation on test users and test electricity cards in the simulative electricity consumption environment to analyze the cause of the problem and quickly locate the fault point. The quick electricity card meter electricity-selling fault location method has the beneficial effects that: the frequency of replacing electricity meters is greatly reduced when faults occur, the time of troubleshooting is shortened, the cost is saved, and the high-quality service of a power supply company is guaranteed.