While Huang Sheng-hsiung was living in the US he took part in missionary medical teams to other countries. From 1983 onwards, he took a month out every year to go and serve the sick in countries all over the world. Hualien's Mennonite Christian Hospital was one stop on these travels.
黃勝雄在美國時就參加「海外宣教醫療隊」，從一九八三年起，他每年抽出一個月到世界各地去服務病患，花蓮門諾曾是他到過的一站。