The invention discloses a valve body integrated module and a heat pump air conditioning system, and belongs to the technical field of automobiles. The valve body integrated module comprises a first electronic expansion valve, a dehumidification valve, a filter valve, a second electronic expansion valve, a heating valve, a first one-way valve, a second one-way valve, a first switching block and a second switching block. The first electronic expansion valve and the dehumidification valve are arranged side by side in the first direction and are connected through the first switching block and theconnecting piece, the second switching block, the filter valve and the second electronic expansion valve are arranged side by side in the first direction and connected through the connecting piece, the first one-way valve, the heating valve and the second one-way valve are arranged side by side in the second direction and connected through the connecting piece, and a preset included angle is formed between the second direction and the first direction. According to the valve body integrated module, the multiple valve bodies are integrated together through the switching blocks and the connectingpieces, and through reasonable arrangement, the integration degree is improved to a great extent, the external pipeline structure is simplified, and the installation difficulty, the installation costand the wiring harness cost are reduced.