Mud pump is one of the key equipment in geological drilling. Its main function is to supply the drilling fluid (mud or water) to the drill hole during drilling, so that it can circulate in the drill hole to carry the debris back to the ground, keep the hole clean, and cool and lubricate the drill and drilling tools, protect the hole wall to prevent the collapse and help to prevent the collapse and help. To help the drilling and so on. Whether the parameters of the pump match properly will directly affect the quality and efficiency of drilling engineering. Heng exploration is known as the cradle of China's specialized production mud pump. The mud pump series products have complete specifications, flow 100-2500L/min, pressure 1.5-50Mpa, occupy the market dominant position, and have drafted the national industry standard of "geological drilling reciprocating mud pump". The mud pump is widely used in geological core drilling, Trenchless Pipeline Construction, mine drainage, chemical liquid transportation and other fields.