The utility model discloses an LED lamp tube with an LED drive working state indication function. The energy-saving lamp comprises a lamp tube and a power indicator lamp arranged on the lamp tube, oneend of the lamp tube is provided with a negative wiring terminal, and the other end is provided with a detection wiring terminal. The input end of the cathode wiring terminal is connected with the cathode of the mains supply, and the output end is coupled with the output end of the LED driving power supply; the input end of the detection wiring terminal is connected with the positive electrode ofthe mains supply, the output end of the detection wiring terminal is connected with the detection end of the LED driving power supply, the LED driving power supply is connected with the power indicator lamp, and then the LED driving power supply controls the on-off of the power indicator lamp according to whether current flows into the detection wiring terminal or not; and when the mains supply is powered on, the on-off of the power supply indicating lamp indicates the working state of the LED driving power supply. The apparatus comprises: a housing. According to the utility model, under thecondition that the commercial power is normally powered on, no matter whether the LED lamp is turned on or not, the working state of the LED driving power supply can be indicated through the power supply indicating lamp, and the faulted LED driving power supply can be found in time and is convenient to monitor.