The invention discloses an LED lamp bar network protection circuit, a driving power supply and a television set. The LED lamp bar network protection circuit comprises a protection module and a plurality of voltage dividing modules corresponding to LED lamp bars. Each voltage dividing module outputs a sampling voltage to the protection module after performing voltage dividing sampling on each LED lamp bar. The protection module compares the sampling voltages of each LED lamp bar and outputs a driving stop command when the difference between the sampling voltage of any two LED lamp bars is greater than the preset threshold value so as to control the LED lamp bar network to stop working; or the protection module compares the sampling voltage of any one LED lamp bar with the reference voltageand outputs the driving stop command when the sampling voltage is greater than the first reference voltage or less than the second reference voltage so as to control the LED lamp bar network to stop working, wherein, the first reference voltage is greater than the second reference voltage. The safety of the LED lamp bar network can be improved and the production cost can be saved.