A liquid material ejector which has a structure free from any unnecessary projection and spread of the ejector in the horizontal direction with respect to the advancing/retracting direction of a plunger while being able to handle a liquid material of any viscosity and enables linkage of a plurality of ejectors. The liquid material ejector comprises a liquid material supply opening for supplying a liquid material, a nozzle for ejecting the liquid material, a valve block having a weighing hole to be filled with ejected liquid material and a liquid material supply channel communicating with the liquid material supply opening, a selector valve having a first channel for allowing communication between the weighing hole and the liquid material supply channel and a second channel for allowing communication between the weighing hole and the nozzle, a plunger advancing/retracting in the weighing hole, a plunger driving section for driving the plunger, a valve driving section for driving the selector valve, and a section for transmitting the driving force from the valve driving section to the selector valve, characterized in that the plunger driving section, the valve driving section and the valve block are arranged continuously in the longitudinal direction.