Abstract:A hydraulic support experiment platform was designed and constructed, and the genetic algorithm (GA) fuzzyPID control method for column pressure was studied on this experiment platform. Moreover, the tangent roulette wheel selection and the adaptive probability of crossover and mutation were employed to enhance GA, the improved GA was used to tune membership functions of fuzzyPID controller. The simulation results show that the proposed method is better than PID, fuzzy and fuzzyPID. The test results show that the proposed method has good pressure regulating performance, small steady state error and the average response is 134 MPa/s, the requirements of column pressure control are met.