New People's Party (Sinmindang) was a communist party in Korea. It was formed on 16 February 1946 by Korean Communists who had been exiled in China. New People's Party had more moderate positions in some issues compared with the Communist Party of North Korea, therefore it was rather popular at wide range of Korean people. The leader of the Party was Kim Tu-bong.
On 22 July 1946 the Communist Party of North Korea joined with the New People's Party, the Democratic Party and the Party of Young Friends of the Celestial Way (supporters of an influential religious sect) to form the United Democratic National Front which put all of North Korea's parties under the "leading role" of the Communists.
Then, on 29 July 1946, the New People's Party and the Communist Party of North Korea held a joint plenum of the Central Committees of both parties and agreed to merge into a single entity. A founding conference was held on 28-30 August, where the united party adopted the name Workers Party of North Korea. The new party had a membership of more than 170,000 with 134,000 coming from the Communist Party of North Korea and 35,000 from the New People's Party.