The utility model relates to a metering tank for a plurality of wells, which comprises a tank body. A metering cavity is arranged in the tank body, more than two metering chambers are arranged in the metering cavity, and the adjacent two metering chambers are separated through a corresponding division plate. The positions on the tank body corresponding to each metering chamber are respectively provided with corresponding liquid inlets, air vents, measuring holes, oil outlets and pollution discharge holes, and the measuring holes are positioned at the tops of the corresponding metering chambers. The air vents, the oil outlets and the pollution discharge holes corresponding to the same one metering chamber are sequentially distributed from top to bottom, and the pollution discharge holes are positioned at the lower parts of the corresponding metering chambers. As the metering tank for a plurality of wells divides the metering cavity into more than two metering chambers through the division plates and the positions on the tank body corresponding to each metering chamber are respectively provided with the liquid inlets, the air vents, the measuring holes, the oil outlets and the pollution discharge holes, the metering tank can simultaneously meter the yields of a plurality of oil wells through the meter chambers when the metering tank is used for oil wells with lower yields, the production cost is reduced, and the metering tank solves the problem that the traditional metering tank can not simultaneously meter the yields of a plurality of oil wells.