The utility model discloses a cover mills section of thick bamboo reentry and uses sleeve pipe guide structure, including sleeve pipe guiding head and spike tubular column, sleeve pipe guiding head includes that top -down welds last guiding head as an organic whole, annular table and time guiding head in proper order, all is formed with an annular boss on annular table's design messenger's sleeve pipe guiding head outer wall and the inner wall, the spike tubular column includes first tubular column body and fixes the spike pipe top connection at the upside of tubular column body, and the external diameter of spike pipe top connection is greater than annular table's internal diameter, make spike tubular column suit in sleeve pipe guiding head and the lower terminal surface of spike pipe top connection press join in marriage the up end of annular boss on sleeve pipe guiding head inner wall on, make the long tubular column at the bottom of the spike tubular column forms drifting always through a plurality of second tubular column bodies that connect gradually in spike tubular column bottom in addition, this cover mills section of thick bamboo reentry and uses sleeve pipe guide structure is with low costs, solves to cover and waits to get set pipe box in the pit and mill a section of thick bamboo and play the reentry problem of difficulty of back, prevents simultaneously to wait to get that sleeve pipe fish head is lost in the pit, damage etc..