The invention relates to a lubricating structure of a guide sliding shoe. The lubricating structure comprises a diverting valve arranged at the top of a sliding shoe lug, wherein the diverting valve is provided with a main inlet, a left lower outlet and a right lower outlet of oil liquid, the left lower outlet and the right lower outlet are connected with inlets of connecting mechanisms correspondingly, the connecting mechanisms extend downwards from the top of the sliding shoe lug to a sliding shoe main frame along the edges of sliding shoe connecting lugs on the left side and right side correspondingly, outlets of the connecting mechanisms are connected with drainage mechanisms correspondingly, the outlets of the drainage mechanisms communicate with oil passages arranged in the sliding shoe main frame and lead to at least two abrasion-resistant layers correspondingly, and the connecting mechanisms and the drainage mechanisms are embedded in a guide sliding shoe body. According to thelubricating structure, when the guide sliding shoe works at different working face inclination angles and different working face upward and downward mining angles, lubricating oil can better flow todifferent abrasion-resistant layers on the left side and right side as required, so that each abrasion-resistant layer can be well lubricated, and therefore, the problems of the service life of the guide sliding shoe and the equipment abrasion loss when a drum-type mining machine mines high-hardness and high-abrasion mineral materials can be obvious solved.