The utility model relates to the field of liquid crystal television. The utility model is to solve the problem that the total power of the existing multi-channel backlight drive is limited. A multi-channel LED backlight drive circuit is proposed, including at least two LED backlight drive circuits. The at least two LED backlight drive circuits are connected to the same voltage input end. The LED backlight drive circuit includes a control circuit, a boost circuit, a drive control IC and at least one group of LED light bars. In an LED backlight drive circuit, the boost circuit is respectively connected to the positive electrode of the LED light bar, the control circuit and the voltage input end. The drive control IC is respectively connected to the negative electrode of each group of LED light bars, the control circuit and the PWM pulse width modulation signal. By setting the corresponding control circuit and boost circuit on each drive control IC, the load capacity of the drive circuit is increased, and the electrical components are prevented from being burned out. The utility model is applicable to liquid crystal television.
