The invention relates to an induction identification device, in particular to a non-contact induction identification device for printing supplies, and aims to provide the non-contact induction identification device which is used for the printing supplies, does not make contact with the supplies, cannot pollute the supplies, has the good induction identification effect and is not damaged easily. The device comprises a discharging pipe, a controller, a first electromagnetic sensor, a first magnetic block, a first rotating wheel, a rotating shaft, a first bearing block, a liquid supply box, an electric control valve, blades, a second rotating wheel and a second bearing block; the discharging pipe is arranged at the bottom of the liquid supply box; the electric control valve is arranged at the upper end of the discharging pipe; and the second bearing block and the first bearing block are symmetrically arranged on the left side and the right side of the middle inside the discharging pipe. The device realizes the effects that the device does not make contact with the supplies, cannot pollute the supplies, has the good induction identification effect and is not damaged easily.