The spacecraft automation test is to use the computer to complete the control instructions to send and monitor data according to predetermined program raking. The automation test case designer carries out the core work of the spacecraft automation test. The design format is unified, the grammar is simple and the operation is flexible that make the spacecraft testing process no longer the individual and discrete instruction. The test case has the process and the automatic monitoring ability. The automation test case design was introduced in this paper including the syntax of the details and the authentication system in the development and use to verify the reliability of the sub-project of the process control ability, support the test taking, the customizable process monitoring automation test case design. It is to improve the test efficiency, ensure the quality of test security, shorten testing cycle, and simplify test team necessary requirement and effective means.