Abstract: The market prospect of the combined heat and power generation in China was analyzed, and the feasibility of high temperature reactor for combined heat and power generation（HTR-CHP） was studied in technical and economic aspects. The results show that HTR-CHP can balance the operation safety and heating efficiency, and guarantee that the radiation effect on the surrounding people and the environment is sufficiently low. Through commercialization development, the economy of HTR can be improved remarkably, and has economic advantage over gas-fired plants, which reveals that the high temperature reactor has the potential to replace the gas-fired plants to supply combined heat and power.