The utility model aims at a vacuum-degree control device for electrodeposited nickel production, which is used for solving the problems that the concentration of chlorine is not convenient to detect and the vacuum degree cannot be regulated in time when electrodeposited nickel is produced in the prior art. The device comprises a main pipe, wherein at least one group of discharging pipes are arranged on the main pipe, and comprise a branch pipe I and a branch pipe II; a sampling valve and a vacuum regulating valve are sequentially arranged at each end of the main pipe. The device is convenient and easy to operate, can be used for regulating the vacuum degree in time by virtue of the vacuum regulating valves according to the detected chlorine concentration, so that flowing speeds of the chlorine-containing waste gas and the anode liquor can be controlled, the vacuum degree of an electrodepositing tank can be balanced and uniform, and the quality of electrodeposited nickel can be improved; by virtue of the arrangement of the branch pipe I and the branch pipe II, the chlorine-containing waste gas and the anode liquor can flow smoothly and cannot cause blockage, and chlorine does not overflow; a sealing element is respectively arranged on each of the branch pipe I and the branch pipe II, so that the sealing performance can be improved.