Geothermal resource is a kind of renewable clean energy which is significant to promote energy-saving and emission-reduction and green and low carbon. On the basis of regional geological characteristics analysis and the research on geothermal reservoir and geothermal field，the geothermal reservoirs of the Dongying Formation and the lower Guantao Formation in Jiyang depression were divided into 12 geothermal units as quick heat supply type，26 geothermal units as moderate-speed heat supply type and 33 geothermal units as low-speed heat supply type. The geothermal reservoir conceptual model was set up combining with comprehensive analysis of pressure and hydrochemical field. The geothermal reservoirs develop in deltas and braided rivers of the Dongying Formation and the lower Guantao Formation. The crust mantle heat flow，formed during the evolution of faulted basin，conducts to the upper geothermal reservoirs and is stored along bedrock under the blocking of thick mudstones and loose insulating layers developing in the Minghuazhen-Quaternary Formation.There is no surface seepage or air infiltration in the geothermal reservoirs. And it is infinite confined horizontal two-dimen? sional flow without inter layer leakage flow for outward heat leaking. The heat storage method was selected to calculate the resource and the results show that the geothermal resources of the lower Guantao Formation and the Dongying Formation are 419.18×109 GJ，which amount to 143.12 million tons of standard coal. The recoverable geothermal resources are 104.8×109 GJ，which amount to 35.8 million tons of standard coal.