Provided is a suction nozzle inspection device which can inspect the cleaning state of a suction nozzle after cleaning. The suction nozzle inspection device has a rotary device (20), a suction nozzle holding tray (40), a suction nozzle connecting part (51), a pump, a flow detection part and a cleaning state determination part, wherein the rotary device (20) enables a rotary table (30) to rotate by a specified angle, the suction nozzle holding tray (40) is detachably arranged on the rotary table (30) and is provided with plural suction nozzle holding parts (40f) for vertically holding the suction nozzle (500) at equal intervals at the periphery, the suction nozzle connecting part (51) is arranged to move vertically and is connected and communicated with a suction nozzle hole of the suction nozzle (500), the pump supplies air to the suction nozzle connecting part (51), the flow detection part detects the flow of air supplied to the suction nozzle from the suction nozzle connecting part via the pump, and the cleaning state determination part determines the cleaning state of the suction nozzle (500) based on the flow of air detected by the flow detection part.