通过对黑龙江及呼伦贝尔盟地区晚中生代（Ｊ３～Ｋ１）大地构造背景、火山活动情况、地质和钻井资料等综合研究，提出断裂和火山活动是表征本区构造特征的两个重要方面。按沉积相成因分类法，研究区内Ｊ３～Ｋ１发育的沉积盆地可划分为７种类型。对在不同时间、不同部位的不同类型沉积盆地的发育情况进行分析，归纳出３种盆地演化系列，从而确定了研究区Ｊ３～Ｋ１沉积盆地类型及演化特征。 Based on the comprehensive study of the tectonic setting, volcanic activity, geology and drilling data of late Mesozoic (J3 ~ K1) territories in Heilongjiang and Hulun Buir League regions, it is proposed that faults and volcanic activities are two important aspects to characterize the tectonic features of this area. According to sedimentary facies-genesis classification, the sedimentary basins in J3 ~ K1 development area can be divided into seven types. The development of different types of sedimentary basins at different times and locations was analyzed and three kinds of basin evolution series were concluded, so as to determine the type and evolution characteristics of J3 ~ K1 sedimentary basins in the study area.