Abstract: To solve the multi-project scheduling problem with multi-resource constraints in aerospace industry,a mathematical model was built and a heuristic algorithm was introduced based on the model.The model is proposed with the target of minimizing the weighted sum of multiproject total duration and single project duration.Considering a single activity requires multiresource and resource can be deprived,the algorithm can optimize the resource allocation among project activities and achieve the goal of the model.The case study shows that the model and algorithm have practical value for engineering application.

Key words: Resource constraints, Multi-project scheduling, Heuristic algorithm, Resource allocation, Space engineering management