The present sampling inspection for the coast defense tactical missile often takes the hitting probability as the main test index,which may result in the mismatch of the test index and test purpose as well as the inability to test the consistency of manufacture quality.To over come this problem,in this paper,the flying reliability of missile is then taken as the main test index.Assume the flying reliability conform to the exponential distribution,the sampling inspection plan is proposed based on this new main test index.Besides,the acceptance rules of sampling inspection and the consistency test are given.Simulation results show that under similar conditions,the proposed plan is more effective and requires fewer samples,which indicats the feasibility and validity of the new method.