The invention provides a dustproof type LED drive power source. The dustproof type LED drive power source comprises a drive power source body, a cooling opening, a supporting plate, an auxiliary dustprevention mechanism and a clamping positioning mechanism; the drive power source body is arranged on the lower portion of the front side face of the supporting plate, the cooling opening is formed inthe front end face of the drive power source body, the auxiliary dust prevention mechanism is arranged on the upper portion of the front end face of the supporting plate, the auxiliary dust prevention mechanism comprises a limiting sliding block, a limiting groove, a
drive shaft, a pull
rope, a dustproof cover, a guide sliding block, a supporting rod, a guide groove, a sleeve, a first groove body, an opening, a carrier plate and a cleaning
brush, the clamping positioning mechanism is arranged on the lower end face of the dustproof cover, and comprises a second groove body, a left clamping plate, a dual-way
ball screw, a left positioning opening, a left positioning column, a left clamping hole, a left clamping rod, a right clamping plate, a right clamping rod, a right positioning column, aright positioning opening and a right clamping hole, and compared with the prior art, the drive power source has the beneficial effects of achieving the dustproof function and achieving the positioning function of the dustproof cover.