Computer display screen brightness adjusting device

The invention discloses a computer display screen brightness adjusting device. The device comprises a computer display screen and a brightness adjusting device, the brightness adjusting device comprises a housing, the bottom of the housing is provided with a base, the top of the housing is provided with a chute, the base is connected with a first supporting seat and a second supporting seat, the first supporting seat and the second supporting seat are respectively provided with a first supporting seat hole and a second supporting seat hole, a slide rod is arranged between the first supportingseat hole and the second supporting seat hole, one end of the slide rod is provided with a first wiring block, a push button is arranged in the chute, a connecting rod is arranged under the push button, one end of the connecting rod is provided with a slide block, the slide block is provided with a slide hole, contact pieces are arranged under the slide block, a fixed shaft is arranged under the contact pieces, two ends o