By analyzing the mutual inner relationships among components in multi-intelligent printing dispatching system, an algorithm mixed with PSO and searching strategy for portion area was put forward. A new studying method to optimize the system partially in every layer was imported and the complicated searching space was reduced gradually by distribute searching, which solved the problem of premature convergence of PSO algorithm and achieved high solution quality. An encoding method with random keys was applied, which can make the ordered table to solve conflict. Simulation results showed that the hybrid algorithm is valid.