The invention discloses a two-dimensional plunger pump driven by space cams. The two-dimensional plunger pump driven by the space cams comprises a front pump shell, a rear pump shell and a pump middlesection, wherein the front pump shell and the rear pump shell are both connected with the pump middle section. A pump shaft is installed on the front pump shell, and the pump shaft transmits the input power to space cam/taper roller drive mechanisms through a rod pushing mechanism. The pump middle section comprises a pump body, a pump sleeve, a concentric ring, a pump core and the space cam/taperroller drive mechanisms, the pump shaft coincides with the rotary center of the pump core, and an axial slot of a plunger on the pump core, a window on the pump sleeve and an undercutting groove in acentral hole of a pump body form a self-matched flow structure of the two-dimensional plunger pump. The two space cam/taper roller drive mechanisms are installed on both sides of the pump body separately, and the two space cams are connected with both sides of the pump core separately. The two-dimensional plunger pump driven by the space cams improves the performance of a hydraulic plunger pump and reduces the manufacturing difficulty and cost.