Ku graduated from the agricultural school in 1956 and toured the island by bicycle before working for a while at the town hall. He then took a job at the local farmers 'association, where he stayed for five years. Then it was on to the local fruit marketing cooperative for another six years.
民國四十五年，古德福農校畢業，騎著腳踏車環島旅遊，之後在鎮公所服務了一段日子，又在農會待五年，再到青果合作社待了六年，都是當時首屈一指的職位。