The utility model relates to a combined heat exchange system for a converter valve and a valve hall. The combined heat exchange system for the converter valve and the valve hall comprises a converter valve loop (I) used for heat exchange of the converter valve and a valve hall loop (II) used for heat exchange of the valve hall, wherein in the converter valve loop (I), the medium flowing out of a converter valve circuit heat exchanger (1) is divided into at least three branches, the first branch of medium returns to a converter valve circuit circulating pump (1) after flowing through the converter valve, the second branch of medium returns to a converter valve circuit circulating pump (2) after flowing through a valve hall air-conditioning condenser (6), and the third branch of medium returns to the converter valve circuit circulating pump (2) after flowing through a valve hall air-conditioning evaporator (7) and a valve hall indoor heat exchanger (9) in sequence. According to the combined heat exchange system for the converter valve and the valve hall, a valve cooling system and a valve hall air conditioner are creatively combined to form an integral working system, and thus compared with the fact that a converter valve system and a valve hall air-conditioning system are used independently in a common direct-current power transmission project, the combined head exchange system has the advantages that the number of categories of devices is reduced, the occupied area is reduced, one-time device investment is reduced effectively, and the maintenance workload during device operation is greatly reduced.