本文描述了渤海及其邻近地区的地热状况,指出该地区的地层温度、地温梯度和大地热流有从四周向渤海逐步地升高的趋势,其与地质构造特征和地壳上地幔结构可相对应,与其它地球物理场特征大致吻合。并提出该区尤其是郯庐带的某些地段可能有上地幔物质上涌,引起地壳深部产生很大的温度差异和密度差异,造成热应力的高度集中。 This paper describes the geothermal conditions in the Bohai Sea and its adjacent areas and points out that the stratigraphic temperature, the geothermal gradient and the geothermal heat flux in the Bohai Sea region gradually increase from the four directions to the Bohai Sea. It is corresponding to the geological structural features and the structure of the crust and upper mantle, Similar to other geophysical field characteristics. It is also pointed out that there may be material upwelling in some parts of this area, especially in the Tanlu zone, causing great temperature difference and density difference in the deep crust, resulting in a high concentration of thermal stress.