The invention discloses a material combination method for a plunger pump head, and relates to plunger pump head construction, in particular to the construction aspect of the material combination method for the plunger pump head. The material combination method for the plunger pump head which is high in acid resistance, low in cost and long in life is provided. Through the principle that a metal material can resist high pressure, and plastic and ceramic materials are extremely high in acid resistance, parts of the a plunger pump head are designed in the mode that a pump head body is a composite of a steel lining and plastic, a pump plunger is a composite of a steel outer lining and ceramic or plastic, a one-way valve body is a composite of a steel lining and plastic, and a one-way valve core is made of plastic; and the parts made of the materials are jointly applied to the same pump head. Through the material combination method, the effect that a shell of the pump head is made of the steel material, and the portion, making contact with a medium, of an inner cavity of the pump head is made of the plastic and ceramic materials is achieved.