The invention discloses a discharging device for improving the migration rate of the hydrophobicity on the surface of a stained silicone rubber material. The discharging device is characterized by comprising a working gas source (1), a gas flow control valve (2), a gas flowmeter (3), a discharging device (4) and a plurality of nozzles (5) which are connected sequentially. The discharging device for improving the migration rate of the hydrophobicity on the surface of the stained silicone rubber material is reasonable in design, simple in structure and large in treatment area and can generate high-density discharging active particles, accordingly the integral utilization rate of equipment is improved effectively, the production efficiency is improved, and the production cost is reduced.