Abstract: A fuel injection pump that provides an improved fuel injection cutoff spill rate at high fuel pressures without degrading the mechanical strength or durability of a control sleeve that is provided with a spill port and fits over the plunger of the pump, and also does not affect fuel injection timing. In the fuel injection pump the length of an inclined lead is extended in the high rack direction, the effective fuel injection stroke is adjusted by controlling the relative positions of the inclined lead and the spill port, and an auxiliary inclined lead is formed on the end portion of the inclined lead in communication therewith, with this auxiliary inclined lead arranged so that it does not extend below the fuel suction and discharge port in the longitudinal direction of the plunger.