Is common in urban and rural residential parking problems such as insufficient parking Spaces, access time is too long, in order to improve the vehicle's access policy, vehicle access time as objective function, using the queuing theory, respectively, set up priority save car, first car, sequential access, interleaved, such as the mathematical model of different routes, the working efficiency of the different access strategy to make use of the MATLAB simulation calculation, through contrast to choose the appropriate access strategy, the ideal way of access strategy, improve the utilization rate of parking Spaces and effectively solved the three-dimensional garage the existing problems, and widely used.