The intention discloses a proportion regulating and injecting system which comprises a pressure pump, a plurality of pump heads are arranged on the pressure pump, each pump head corresponds to an injeThe intention discloses a proportion regulating and injecting system which comprises a pressure pump, a plurality of pump heads are arranged on the pressure pump, each pump head corresponds to an injection well, is provided with a flux regulating mechanism which can control the flux of chemical agent solution, is independently communicated with a high-pressure valve group pipeline which can transpction well, is provided with a flux regulating mechanism which can control the flux of chemical agent solution, is independently communicated with a high-pressure valve group pipeline which can transport and monitor the state of the chemical agent solution, the output end of the high-pressure valve group pipeline is connected with a high-pressure water pipeline, and an output port of the high-presort and monitor the state of the chemical agent solution, the output end of the high-pressure valve group pipeline is connected with a high-pressure water pipeline, and an output port of the high-pressure valve group pipeline is communicated with a static mixer; the chemical agent solution is diluted by water according to a set proportion; after diluent is further evenly mixed in the static mixer,sure valve group pipeline is communicated with a static mixer; the chemical agent solution is diluted by water according to a set proportion; after diluent is further evenly mixed in the static mixer, the diluent is injected into an injection well. The invention directly completes the flow regulation of the chemical agent solution through the output of the pressure head, cancels a link that the chthe diluent is injected into an injection well. The invention directly completes the flow regulation of the chemical agent solution through the output of the pressure head, cancels a link that the chemical agent solution is regulated by valves to realize the flow distribution in the original one-pump multiple-well technology, simplifies the one-pump multiple-well technology, saves oil-field chemiemical agent solution is regulated by valves to realize the flow distribution in the original one-pump multiple-well technology, simplifies the one-pump multiple-well technology, saves oil-field chemical area ground investment and reduces viscosity loose of the chemical agent solution of the injection link.cal area ground investment and reduces viscosity loose of the chemical agent solution of the injection link.