To solve the problem of resource allocation in the emanufacturing environment, combinatorial auction based negotiation policy was proposed in an internetbased multi-agent system. With the formulation of the allocation problem and that of the combinatorial auction solution, the design and the procedure of the combinatorial auction are given. Then, distributed rules saved in the rule base in corresponding agents are adopted to describe and construct the negotiation policy to realize the combinatorial auction. The final part of the paper gives numerical testing to demonstrate the policy to be feasible and efficient.