Abstract: DEA efficiency evaluation to complex production systems is of great value,however,the related researches are still scarce.The tree-like production system is a typical complex system.Traditional DEA CCR approach ignores the interior process of complex systems and overrates the technique efficiencies.Considering the interior process of complex systems,this paper advances a DEA-based model for efficiency evaluation to a tree-like production system.The model can rate the technique efficiencies of tree-like systems more reasonably and can find out the potential for system improvement more greatly.The numerical example for marketing systems is presented to demonstrate the rationality of the proposed model.