Solution delivery apparatus for high performance liquid chromatography

The utility model belongs to the technical field of machinery, and relates to a solution delivery apparatus which overcomes the defects that an existing solution delivery apparatus has no function of preparedness for averting perils and the like. The solution delivery apparatus comprises a box provided with a start component, a socket for plugging a power supply is arranged on one side of the box, an operation interface and a plurality of water pumps capable of pumping solution are arranged on the other side of the box, the water pumps are serially connected together through a hollow pipe, and a one-way valve is arranged at an input end of each water pump. The solution delivery apparatus has the advantage that one more serially-connected water pump is arranged, so that preparedness for averting perils is achieved.