In　this　paper,　a　control　system　of　axially　telescoping　wing　experimental　device　is　investigated.　The　control　system　is　composed　of　STC89C52　SCM,　an　AC　servo　motor　and　two　margin　micro-switches.　Based　on　the　experimental　device,　a　new　design　of　telescoping　wing　is　given.　Telescoping　wing　is　a　kind　of　morphing　wing,　and　is　represented　by　an　axially　moving　cantilever　beam/plate.　Telescoping　wing　is　able　to　change　its　wing　area　and　aspect　ratio　in　order　to　adapt　to　the　variable　environments.　The　extending　and　retracting　of　telescoping　wings　could　accomplish　different　actions　and　meet　diverse　needs　in　variable　flight　environments.　Thus,　the　research　of　retractable　wing　is　of　great　significance　for　both　theory　study　and　practical　application.　©　2011　IEEE.