The utility model relates to a novel high -pressure system of multicolumn stopper high pressure water pump of group and applied water pump, water pump generate subassembly, pressure holding assembly, mechano -electronic pressure safety control assembly, cleaning solution automatic generation subassembly by the high pressure and constitute, contain 4 plungers more than and, and each plunger corresponds a set of high pressure and generates the subassembly, and the sloping cam plate was fixed at the motor shaft front end during the high pressure generated the subassembly, a plurality of plungers of concentric equipartition the plunger spring effect down with arrange the sloping cam plate in on thrust ball bearing by tightly on its movable coil, along with the rotation of motor shaft, sloping cam plate and thrust ball bearing are circular motion along motor axis, and a plurality of plungers that sticis on the bearing are along with straight reciprocating motion is in step in the rotation of bearing, because the plunger distributes according to the circumferencial direction with one heart, every plunger motion position also is that the equipartition is on a whole circumference. The utility model provides a low voltage sense motor starting difficulty problem, not only improved product property can, the breakthrough that has simultaneously brought revolutionary for the cleaning machine trade.