The hydraulic profile control and water shutoff pump is a hydraulic driven reciprocating pump with double cylinders and single action.The maximum working pressure is 25 MPa and the maximum displacement is 12 m 3/h.The pump has the characteristics of smooth in pressure and reliable in working.It can work normally when the solid terms of the pumped fluid are 45 per cent.The viscidity of the polymers in the pumped fluid can be kept in above 99 per cent.The application in oilfields indicates that the pump is an ideal injection equipment in profile control and water shutoff operations.