From 1970, he began to engage in public service. He used to be a technician and technical officer of the Ministry of the Interior, a special member of the Lands Department of Taipei Municipal Government, a deputy director and director of the Lands Department of Kaohsiung Municipal Government, a secretary general of Kaohsiung Municipal Government, and an executive deputy mayor of Kaohsiung City. During the period of 1998, Lin Zhongsen had planned to register for the KMT primary election of Kaohsiung Mayor. But then the Kuomintang nominated Wu Dunyi to run for re-election, and Lin Zhongsen also left the Kaohsiung city government. From 1998 to 12, Lin Zhongsen served as "executive deputy minister of the Ministry of the Interior" from local to "central" for 10 years. He is proficient in land planning, land policy, local system and cross-disciplinary integration of the Ministry of the Interior. In May 2008, he served as Minister of Government Affairs of the Ministry of the Interior. In 2009, Typhoon Morakot caused disasters and served as the deputy CEO of the Post-disaster Reconstruction Promotion Committee; On September 10, he was appointed as the "Secretary-General of the Executive Yuan" of Taiwan Province provincial authorities. 201265438+1031"Cabinet" speech, Lin took over as "Secretary General of the Executive Yuan". On the same day, Ma Ying announced that Lin Zhongsen would take over as Secretary-General of the Kuomintang. On February 6th, the KMT Central Committee held a handover ceremony for the Secretary-General. Lin Zhongsen took the seal of the Secretary-General of the Party from Yi Liao and officially entered the party affairs from government affairs. 20 12 On September 27th, Lin Zhongsen succeeded Jiang Bingkun as the chairman of SEF.