Coach in Taichung Municipal DaJia Senior High School for 20 years. Coach Sun has produced many elite athletes, such as High Jumper Mr. Chun-Hsien Hsiang and 400mH Mr. Chieh CHEN, both national record holders. Coach Sun was invited to join TPE team as a high jump coach since 2015, he was appointed as the head coach for TPE team since 2016.