The invention discloses a splicing and assembling type heat pump base, and belongs to the field of heat pump unit matching engineering. The pump base is composed of a supporting base, concave body plates, a hoop and an upper stable plate and is characterized in that the two abut-joint concave body plates are fixed above the supporting base, semi-circular sinking portions of the concave body platesare spliced and assembled in a back to back manner, the hoop is assembled on the outer sides of the two semi-circular sinking portions, and a combined supporting body is formed. The upper stable plate is fixed above the two combined supporting bodies. The assembling manner can be selected, the pump base can adapt to assembling of heat pump units of various manners, and convenience is provided fortransporting and assembling of a whole heat pump.