概述了中国东北深震的时空分布、主应力优势方向以及深震区内的火山活动等特征。依据日本海沟到中国东北东部地震空间分布、震源机制解、俯冲板块的温度结构以及东北深震与海沟浅震的关联等大量资料，论述了中国东北深震是西太平洋板块高速度、小倾角向欧亚大陆下俯冲的结果。讨论了中国东北深震的板块构造意义。 The spatial-temporal distribution of deep earthquakes in northeastern China, the direction of principal stress and the volcanic activity in deep earthquakes are summarized. Based on a large amount of data, such as the spatial distribution of the earthquakes in Japan to the east of northeast China, focal mechanism solution, temperature structure of the subducted plate and the correlation between deep earthquakes in the northeastern and shallow trenches in the northeastern China, the paper discusses that the deep earthquakes in northeastern China are the high velocity of the western Pacific plateau, Eurasian continent dive results. Discusses the plate tectonic significance of the deep earthquakes in northeast China.