Indoor elevator car system

The utility model discloses an indoor elevator car system, which belongs to an elevator structure, and comprises an elevator car and a car roof, the side wall of the elevator car is provided with a notch, an escape ladder is fixedly arranged in the notch, the car roof is provided with a safety window positioned above the escape ladder, and the car roof is also provided with a ventilation opening; the notch in the side wall of the lift car is used for containing the escape ladder, due to the existence of the notch, the escape ladder does not occupy the main space in the lift, when an emergency occurs, passengers in the lift can climb up from the escape ladder and escape from the top of the lift car after a safety window is opened, and due to the fact that the escape ladder is fixedly installed, when the emergency occurs, the passengers can escape from the top of the lift car. According to the escape ladder, passengers can immediately escape by using the escape ladder without other operations, so that the escap