Abstract: By adopting the method of numerical simulation, a research has been conducted to study the dynamic evolutional course of surrounding rock structure of 93d05 working face along gob side after excavation of multiple working faces, in response to the complex geological condition of 93d05 working face with overlying and lateral excavation in Nantun coal mine. The corresponding dynamic evolutional course is obtained as follows: surrounding rock in the 93 d 07 working face along gob side within a range of 6 m is mainly cataclastic structure after excavation of 93 d 07 working face，and the rock in the other location around gob-side entry is mainly block structure；3 d coal roof is mainly cataclastic structure after excavation of 93u05 working face and 93u03 working face, and the other rock around gob-side entry is mainly block structure.

Key words: close distance coal seam, along gob side, numerical simulation, surrounding rock structure