To provide a variable capacity type pump capable of reducing variation of a control flow rate.

A variable capacity type pump capable of variably controlling a discharge flow rate Q of hydraulic fluid (hydraulic oil) includes: an elastic member (a spring 43) that always biases a valve body (a spool 41) toward a predetermined initial position (an x-axis negative direction side); a solenoid 5 that generates thrust Fsol moving the valve body by electrification; an electromagnetic valve that controls the discharge flow rate Q of the pump by moving the valve body; and a thrust adjustment mechanism 9 that can adjust the thrust Fsol.