Jiyang depression and its surrounding area are located in the east of North China plate. They are extensional sedimentary structures in the plate. At present, development and utilization of hydrothermal geothermal resources in the research area is relatively high, but the study on the conduction mechanism of the upper crust heat source is less. High resolution threedimensional crustal velocity structure in Jiyang depression and its surrounding areas is helpful to explore the law of heat source enrichment in the area. The velocity structure of the threedimensional crust in the study area is obtained by using double difference tomographic method. Through comparison and analysis on characteristics of geothermal field, it is concluded that velocity structure of the upper crust is closely related to the conduction law of deep heat source. According to the inversion results, it is found that there are large scale low velocity layers in the northwest of Liaokao-Qiguang fault, which is related to the sedimentary strata with large regional thickness; High speed anomalies are obvious in eastern Liaocheng and Chengning uplift, and the temperature increase rate of uplift area is higher than that in the depression area, which is related to thermal conductivity of the lower strata of the reservoir. The velocity below 10km in Dongying area is generally high, and the contribution of the heat flow value of the lower crust is stable. The drag and pull of the crust in the study area by the uplift in the south central part of Shandong province since late Yanshan period is the most direct structural factor of thermal field in the inner part of Jiyang depression. The formation of multi group graben structure is an important control factor of geothermal field boundary in hydrothermal sedimentary basin.