The inverted pendulum is a complex, nonlinear and unstable system.The study of the inverted pendulum system is usually use the method of mathematical modeling,however the method is too complicated and the constraint conditions need to be simplified in the modeling process，which results in some errors in the simulation results.Based on Simscape module the inverted pendulum system was modeled in Matlab Simulink environment.A new fuzzy rule table was designed according to the operation characteristics of the inverted pendulum system，and a fuzzy controller was built based on the table.The fuzzy controller was used to control the inverted pendulum under different conditions, and a good control effect was obtained.