Yang Ting-Li is a famous officer of Taiwan in Qing Dynasty. His life crossed the Qianlong(乾隆) and Jiaqing(嘉慶) era. When Yang Ting-Li came to Taiwan as an officer since 1786, his official experience had been fluctuated. Yang Ting-Li had come to Taiwan thrice as an officer for sixteen years that makes a compact relationship to Taiwan. In Yang Ting-Li's poems and essays, usually expresses his official travelling experiences, which talks about his aspiration in the young, but had many setbacks in his official life later. This article mainly probes the official belief of Yang Ting-Li, that is how to face the political situation which is inequable as an officer.