The teacher certification examination for the secondary school, formally "The Teacher Certification Examination for the Normal School, Middle School and Girls' Senior High School of the Ministry of Education" was abbreviated in Japanese as "bunken" (ぷんけん). The examination had been implemented for 78 times from 1885 to 1943. It was interrupted by the war for three years. After World War II, it was held three times from 1947 to 1949 under the name of "The Teacher Certification Examination for the Middle School and Girls' Senior High School of the Ministry of Education". The total number of examination was 81 times during the whole 65 years of its existence. The purpose of implementing the examination was to promote those who could not have got normal or higher degree, but with genuine talent for education. In addition to specialized knowledge, a qualified secondary school teacher had to have educational knowledge in such subjects as introduction to education, educational psychology, and educational methodologies and so on. It was essential for assuring non-normal system candidates equipped with both professional competence and basic educational knowledge. There was no conclusive date on the first time of the secondary teacher qualifying examination during the Japanese colonial period. It was known that on 20^(th), August, 1909, the Governor-General of Taiwan held the first pre-examination, so that Taiwanese candidates didn't have to take the annual trip by boat specially for such examination in Tokyo. It was thus obvious that there were Taiwanese candidates who had to take qualification examination in Tokyo before 1909. The implementation of qualification examination was a good news for those who had non-normal education. Those who were thus qualified could become the middle school, normal school, and girls' senior high school teachers, but the qualified rate was low and difficult. In this case of demand exceeding supply, it took a perfect plan to prepare for a successful qualifying examination. The essay explores the real situation of the secondary school teachers preparing for such examination in Japan and Taiwan before World War II. It discusses the history of the certification examination and the general idea of Taiwanese candidates during the Japan colonial period in order to clarify the influence on the secondary school teachers in Taiwan.