This utility model relates to an elevator car escape device ladder, comprising an elevator car and a safety window opening in the top of the elevator car, the top of the elevator car being provided with a support frame, the support frame being provided with a winding device, and the winding device being used to move the ladder up and down. The top of the elevator car is also provided with a safety window structure that is compatible with the safety window. With the combination of a drive motor, an axle shaft and a winding disk, the drive motor drives the axle shaft to rotate, the winding disk winds the traction rope, and the ladder moves upward, thus accelerating the speed of the trapped persons to quickly climb to the top of the elevator car and increase the practicality.