The invention discloses a gantry crane provided a control chamber at the top end. The gantry crane comprises a crane body, fixed vertical supports are arranged at the two ends of the crane body, a transverse beam lazy arm is connected between the top ends of the fixed vertical supports, a sliding rail is arranged at the bottom end of the transverse beam lazy arm, a steel wire electric block device is connected to the sliding rail in a sliding manner, and the control chamber is arranged at the front end of the upper end face of the transverse beam lazy arm; and the steel wire electric block device is connected to control equipment, a movable marking rod is fixedly installed on the front end face of the steel wire electric block device, and a wide angle camera is installed on the outer side end face of the top end of the transverse beam lazy arm and is connected with a monitoring display screen. By means of the above manner, a worker can sit in the control chamber to do operation lifting work at the top end of the crane body, the possibility of collision by lifting hooks and objects in the lifting process is effectively avoided, and the working safety is improved.