Different types of environment and uneven wall on the stability and reliability of the wall climbing robot’s request,design of a wheel legged wall climbing robot for permanent magnetic adsorption fault detection of wind turbines, the robot has load ability, obstacle capability, flexible and reliable and can achieve the level of the wall to the vertical wall of the interactive transition.According to the permanent magnet adsorption wall climbing robot principle, mechanics and kinematics model was established along the wind generator tower up and down and hanging wall of three kinds of attitude and design of the mechanical structure, the use of Matlab/Simulink software, the simulation of wall climbing robot starting at different positions under acceleration at instant, the ADAMS software was used to simulate the obstacle climbing of wall climbing robot. The experimental and simulation results show that the new type of wall climbing robot is stable and reliable in operation, can realize the smooth transition of the wall very good, which for wall climbing robot in the actual operating steady movement provides a theoretical basis