Abstract: The mining connection plan is one of the most important technical documents of coal enterprises. The accuracy of the mining connection plan directly determines whether the work of the mine can be carried out in a scientific and orderly manner. It is affected by many factors in the actual work. The accuracy of the mining connection plan is often difficult to guarantee. In order to solve this technical problem and further improve the accuracy of the preparation of the mining connection plan, Shendong Coal Group, closely combined with the actual production of the mining area, comprehensively analyzes the influencing factors of the accuracy of the mining connection. Starting from improving the preparation method, actively using the information technology means and strengthening the daily management, making full use of the refined management method and scientific quota calculation means, the accuracy of the mining connection is increased by about 10%.