Missile is a kind of costly and long-stored equipment. The state of missile can be monitored effectively, but the broken-down time can't be forecasted. It is needed to use the test data logically for assessing the storage reliability. Now the missile field test data can't be fully used that cause the problem of superfluous or deficient test. By investigating the test and storage type of missile components, 4 kinds of missile field test data-acquisition projects are brought forward. The advantage and disadvantage of the projects are analyzed. The failure of missile can be ascribed to degraded capability. It is better to use the approach about degradation data analysis based on the pseudo life distribution to assess the reliability. According to the approach, an emulator in which the data of project 1 is used is given. The results validate the validity and practicability of the project.