Wang Bailing of Whampoa Military Academy introduced him to the military academy as an instructor. He disagreed, saying that the people in his hometown (Hainan) were under the rule of warlords, and he would lead troops back to Hainan to fight Deng Benyin. So, at the beginning of 1926, he was ordered by the Fourth Army of the National Revolutionary Army to go to Weizhou Island to collect more than 200 fishing boats in this county, and carried the revolutionary army to cross Qiong to expel Deng Jun. At that time, he served as the main staff officer in Chen Tuan and led some troops to land in Bopu Port of this county. Battalion Commander Deng Bu (Xu Wenren), a warlord entrenched in Lingao County, has known him for a long time. Hearing the news, he hung a white flag and surrendered. Later, Chen was recommended as the county magistrate of Lingao County. Wang Ren took office on 1926 and 1 and retired in June of the same year. During his term of office, he wrote to demand the abolition of lang tax, sea tax and barren slope tax to reduce the burden on the people. Abolish the sedan chair of the county magistrate; Support Wang Chao, a member of * * *, to establish various revolutionary organizations and carry out activities, advocate the new culture movement, and advocate "down with power, down with warlords and down with corrupt officials".