The invention discloses an electric energy metering simulation analysis system for a complex nonlinear load environment, and the system comprises a nonlinear load module which gives comprehensive consideration to the operation characteristics of an energy-saving lamp, an inverter, and a frequency converter, can achieve the simulation of a single load, and also can achieve the combined simulation of loads; a power module which simulates the working conditions of a grid power supply under different complex conditions; a power transmission line module which simulates the parameters of an actual power transmission line, and analyzes the impact on electric energy metering from a power transmission line in a power system; a transformer module which achieves the conversion of a voltage level and the simulation of loss; an electric energy metering simulation module which can simulate different electric energy metering devices with different principles and different performances, so as to obtain the electric energy values of the simulated electric energy metering devices under different simulation conditions; and an electric energy metering error analysis module which calculates the electric energy metering error under different complex conditions through the comparison of the electric energy metering simulation values and an electric energy metering standard value.