伪三江省由于地处北满,广袤的平原尚未开垦,且毗邻苏俄,受其影响较深;同时也是东北抗联活动的主要驻地,因此其战略位置十分重要。为解决日本国内过量的劳动力问题,更是为了防范苏联和抗日联军,日伪加强实施伪三江省的“满洲移民”。 Due to its location in northern Manchuria, the vast plain has yet to be reclaimed, and is adjacent to the Soviet Union and Russia, where it is deeply affected. At the same time, it is also the main station for anti-UN activities in the Northeast. Therefore, its strategic position is very important. In order to solve the problem of excessive labor force in Japan, it is to prevent the Soviet Union and the anti-Japanese allied forces and to promote the implementation of “Manchurian immigrants” in pseudo-Sanjiang prefecture.