Abstract: The paper deals with the problem of stochastic production planning and control in flexible automation workshops(FAW),proposes a new method of stochastic production planning (SPP). In the paper,a mathe matical model of stochastic production planning and control in FAW is built up first. Then an algorithm to solve the problem is deduced. The corresponding softw are package has been developed. With the help of it,examples of SPP have been studied,which shows that the algorithm can optimally break up FAW′s product demand plans into short-terms tochastic plans executed by FMS in FAW.