Considering the problems that too many fuzzy control varieties and too slow responding velocity in the path planning research of mobile robots with the fuzzy control algorithm, the paper proposed a simple realization algorithm of double layers fuzzy controller through simplifying the relation of the fuzzy controller and the mobile robot. For the first fuzzy controller; the inputs are distance and location-angle, the output is the change-angle; For the second fuzzy controller, the inputs are distance and change-angle, and the output is step. The problem “rules bomb” existing in the general fuzzy controllers has been solved, and it improved the efficiency of mobile robots path planning algorithm. Finally, the algorithm has been proved with efficiency through simulated in MATLAB.