The invention discloses a circular shooting camera for a track inspection robot. The circular shooting camera comprises a fixing frame, a spherical shell, an antenna, a main movable arm, an auxiliarymovable arm, a camera shooting device, a wire inlet, a connecting column, a waterproof charging port, a T-shaped groove I, a T-shaped groove II, a wire groove I, a wire groove II, a center column, anexternal connecting hole, a wire hole I, a wire hole II, a control bin, a battery bin, a control module, a lithium battery and a limiting contact. The device is additionally arranged on the inspectionrobot, and the monitoring range is expanded by utilizing the main movable arm and the auxiliary movable arm on the spherical shell, so that no dead angle exists in the monitoring range. The device isexplosion-proof and waterproof, and the lithium battery in the device can be used for coping with the power shortage of the inspection robot; when the inspection robot breaks down, image acquisitionand transmission are carried out through wireless remote control, or the surface of the inspection robot or the upward side of a track is observed, and the repairing preparation is made; and when a network is blocked, an automatic camera shooting mode is started, and a storage card is backed up for post analysis.