A liquid material discharge device comprising: a plunger unit provided with three or more plungers; a plunger drive unit for moving the plunger unit in a reciprocating manner; a valve unit including three or more metering bores into which the plungers are inserted, and further including discharge ports and a liquid material supply path that are communicable with the metering bores, the valve unit selectively taking a first position at which the metering bores are communicated with the liquid material supply path and a second position at which the metering bores are communicated with the discharge ports; a valve drive unit for switching over the valve unit between the first and second positions; and a device main body in which the plunger drive unit, the valve unit, and the valve drive unit are arranged, wherein the plunger unit includes a plunger holder for holding the three or more plungers in an aligned state, characterized in that the plunger holder is detachably coupled to the plunger drive unit with the plungers held in the aligned state by the plunger holder, wherein the plunger unit includes a first plunger unit for holding the plungers in an aligned state at a first interval, and a second plunger unit for holding the plungers in an aligned state at a second interval different from the first interval, and each selected one of the plunger units is attached in a detachable manner to the device main body, and/or wherein the plunger unit includes a first plunger unit for holding three or more plungers in an aligned state, and a second plunger unit for holding a larger number of plungers in an aligned state than the number of plungers held by the first plunger unit, and each selected one of the plunger units is attached in a detachable manner to the device main body; the liquid material discharge device being further characterized in that it comprises several valve units corresponding to the first and second plunger units, each valve unit being removably attachable to the device main body. a plunger unit provided with three or more plungers; a plunger drive unit for moving the plunger unit in a reciprocating manner; a valve unit including three or more metering bores into which the plungers are inserted, and further including discharge ports and a liquid material supply path that are communicable with the metering bores, the valve unit selectively taking a first position at which the metering bores are communicated with the liquid material supply path and a second position at which the metering bores are communicated with the discharge ports; a valve drive unit for switching over the valve unit between the first and second positions; and a device main body in which the plunger drive unit, the valve unit, and the valve drive unit are arranged, wherein the plunger unit includes a plunger holder for holding the three or more plungers in an aligned state, characterized in that the plunger holder is detachably coupled to the plunger drive unit with the plungers held in the aligned state by the plunger holder, wherein the plunger unit includes a first plunger unit for holding the plungers in an aligned state at a first interval, and a second plunger unit for holding the plungers in an aligned state at a second interval different from the first interval, and each selected one of the plunger units is attached in a detachable manner to the device main body, and/or wherein the plunger unit includes a first plunger unit for holding three or more plungers in an aligned state, and a second plunger unit for holding a larger number of plungers in an aligned state than the number of plungers held by the first plunger unit, and each selected one of the plunger units is attached in a detachable manner to the device main body; wherein the plunger unit includes a first plunger unit for holding the plungers in an aligned state at a first interval, and a second plunger unit for holding the plungers in an aligned state at a second interval different from the first interval, and each selected one of the plunger units is attached in a detachable manner to the device main body, and/or wherein the plunger unit includes a first plunger unit for holding three or more plungers in an aligned state, and a second plunger unit for holding a larger number of plungers in an aligned state than the number of plungers held by the first plunger unit, and each selected one of the plunger units is attached in a detachable manner to the device main body; the liquid material discharge device being further characterized in that it comprises several valve units corresponding to the first and second plunger units, each valve unit being removably attachable to the device main body.