PURPOSE: To improve the suction efficiency under low/intermediate speed by providing second suction path communicating with a tank in the vicinity of pump chamber sucking section of a vane pump thereby reducing the path resistance between the tank and pump chamber sucking section.

CONSTITUTION: A pair of paths 50, 51 constituting the second suction path are provided at the opposite sides of a bypath 33 on the upper section of pump housing 10. The upper ends of said paths 50, 51 are communicated with the lower section of fitting hole 47 constituting the first suction path while the lower ends are communicated at the position near to the suction ports 25, 26 with an annular groove 29. Since two suction paths are provided, the flow path resistance between the tank and the pump chamber suction port is reduced.