To provide a directional selecting valve of a hydraulic circuit switching flow of hydraulic oil by a flow rate of the hydraulic oil.

In this directional selecting valve, pressure difference of a flow rate of hydraulic oil of an oil sump 8 flowing in from a valve 7 and an input port 2 communicating therewith and passing through first and second branch passages 5, 6, or the first branch passage 5 moves a spool 10, and the movement of the spool 10 switches a first output port 3 to a second output port 4.