LED dimming drive circuit capable of preventing light leakage

The utility model relates to an LED dimming drive circuit capable of preventing light leakage. The LED dimming drive circuit comprises a light leakage removing protection unit, a dimming control unitand a ripple removing unit. The light leakage removing protection unit is electrically connected between a power supply and the dimming control unit and used for discharging high-frequency componentsin a power grid, the dimming control unit outputs dimming control signals, the brightness of an LED is controlled through the ripple removing unit, and LED dimming is achieved. The light leakage removing protection unit comprises a bridge rectifier BD1, a resistor RV1, a capacitor Y1, a capacitor Y2 and a resistor FR1. According to the utility model, the capacitance effect caused by a metal shellis overcome by adopting the light leakage removing protection unit, and the phenomenon of slight brightness or flash is avoided; the ripple removing unit is adopted to solve the problem of low-frequency stroboflash, and the pro