“九·一八”事变后 ,日帝为了把东北变成它们完成大陆政策的“前阵基地” ,在让更多的日本人到东北定居的同时 ,对中国关内汉族和朝鲜人分别实行限制和放任政策。这种对不同民族的移民政策导致了“九·一八”事变后中朝日三民族的东北移民结构发生了变化 After the September 18th Incident, in order to turn northeast into a “front-line base” for them to complete their mainland policies, the Japanese Emperor imposed restrictions on Han Chinese and Koreans in China while allowing more Japanese to settle in the northeast And laissez-faire policy. This immigration policy to different ethnic groups led to changes in the structure of northeast immigrants of the three ethnic groups in China, North Korea, and Japan after the Sept. 18 Incident