In order to confirm appropriate test project, tree analysis technique based test project planning method for operational test of radar countermeasure equipment is proposed. Firstly, the key operational issues are raised according to the combat mission of radar or radar countermeasure equipment. Then, with the tree analysis technique, every key operational issue is divided into test target and relevant effectiveness indexes and applicability indexes. Finally, the specific operational test project can be confirmed according to test target and relevant effectiveness indexes and applicability indexes. Research results show that the confirmed test projects can be used increasing or reduce and ensure the data acceptance for operational effectiveness and operational applicability evaluation.