The computational and compositional features are very important in the construction of software for the workstation clusters. However, due to the lack of suitable supporting environment of software development, most existing distributed parallel software systems are weak in these two aspects, especially in the compositional feature. In this paper, a distributed object based framework for parallel programming is proposed. The goals of the framework are: first, getting high parallel computing efficiency; second, constructing a mechanism to encapsulate and reuse parallel program. The framework is tested by some parallel algorithms, the results indicate that the framework is helpful.