Aiming at the problems about high cost, less sample size and low confidence during the reliability test of programming control device for ready-to-fire of terminally guided projectile performed by the dynamic simulation method using gas gun in industry at present, a new test method was put forward based on the test requirements of electrical parameter detection and structural characteristics of the tested objects. That is, the structural modification to the programming control device for ready-to-fire was carried out to realize the manual release of the setback arming device and complete the relevant electrical parameter detection in the laboratory. Reliability tests to 95 Russian-made and homemade programming control devices for ready-to-fire of terminally guided projectile in all were carried out. The electrical pulse signals of meeting the requirements were collected from pulse generators. The factors affecting the test results were analyzed and the solution measures were put forward. Results show that the tightness of manually start hole is an important factor affecting the action reliability of programming control device for ready-to-fire. After the fuze is started, the manually start hole should be reliably sealed by a special wooden plug to prevent the leakage of the flame energy. The experiment proves the feasibility and economy of this method. This method can be extended and applied to the detection of the electrical parameters of the sabot inductor of a gun-launched missile.