Firm and durable cage top of suspension cage

The utility model discloses a firm and durable cage top which comprises a bottom plate, a plurality of safety guardrails are fixed on the bottom plate, a skylight is rotatably connected to the bottom plate, a supporting plate is fixed on the lower portion of the bottom plate, a retractable rope ladder is arranged under the skylight, a round rod is fixed on the lower portion of the supporting plate, and the round rod is fixed on the bottom plate. The rope ladder is connected with the round rod, two first fixing plates are slidably connected to the supporting plate, two second fixing plates are slidably connected to the supporting plate, each first fixing plate is slidably connected with a third fixing plate slidably connected with the corresponding second fixing plate, and a fixing mechanism is installed on the bottom plate. A clamping block is fixed to the lower portion of each third fixing plate, so that a worker can climb onto the cage top from the cage conveniently, the rope ladder can be automatically ret