Axial variable plunger pump

The utility model relates to a axial-variable plunger pump, wherein an adjustor is arranged on the plunger pump, the adjustor comprises an adjusting plunger, a guide plate, a feedback rod, and a throttling valve, tilting angle of the tilting tray is changed via a variable head to perform variance control, the adjustor arranged on the pump shell perform constant-power control to the plunger pump via inner oil way, performs total power control to the two plunger pumps via an inner control oil way and a step-plunger in the adjustor, and performs variable-power control to the plunger pumps via the inner control oil way and a proportional electromagnetic valve which is arranged on an end cover. The utility model can realize maximum power of prime engine to the largest extent; has high power density and a plurality of control functions, more particularly to the total and constant power control function; and solves the problems of low output pressure, two-way input double-way output, complicated structure, no total power control function, impossibility to realize engine power to the largest extent, and energy source waste of the axial-variable plunger pump in background technology.