The invention relates to an accessory of a reciprocating pump and aims to provide a pump head combination valve for a reciprocating pump. The pump head combination valve comprises a valve body, wherein an inlet and an outlet for connecting media are arranged on the valve body; a liquid inlet valve guide holder, a combination valve holder and a liquid outlet valve guide holder are sequentially arranged in the valve body; and the liquid inlet valve guide holder and the combination valve holder are fixedly connected, and the combination valve holder and the liquid outlet valve guide holder are fixedly connected. The pump head combination valve of the invention has simple structure, safety, reliability, convenient maintenance and strong economical efficiency; and the pump head combination valve which is arranged at the front end of the pump head of a plunger pump or a diaphragm pump is used for replacing an inlet one-way valve and an outlet one-way valve which are respectively arranged atthe upper end and the lower end of the pump head of other same types of pumps, thereby relieving the working strength of installation, maintenance and repair, greatly improving the efficiency and reducing the cost.