Airplane leading edge detection device

The invention discloses an airplane leading edge detection device. The airplane leading edge detection device comprises two slide rails paved on the ground, wherein a detecting car is in sliding fit on the slide rails, and clamping cars used for clamping airplane leading edges are in corresponding sliding fit on the slide rails on two sides of the detecting car; the detecting car comprises a chassis, track rollers matched with the slide rails are arranged at four corners of the bottom of the chassis, a Y-direction sliding base is arranged on the top surface of the chassis, a vertical support is arranged on the Y-direction sliding base, an X-direction sliding plate is arranged at the top of the vertical support, a Z-direction sliding arm is arranged on the X-direction sliding plate, a slider capable of sliding in the Y direction is arranged on the Z-direction sliding arm, a rotary disc is mounted on the slider, and a probe rack is connected and fixed on the rotary disc. With the adoption of the airplane leadin