A telescopic pipe structure for a pole saw includes an inner pipe, an outer pipe fitted to the inner pipe and moving relative to the inner pipe, and an adjusting device. The adjusting device includes a body, a pressing unit, and an adjusting unit. The outer pipe is penetratingly disposed at a sleeve hole of the body. The pressing unit is pivotally disposed a pressing portion of the body to press against inner pipe and stop movement of the inner pipe. The adjusting unit is disposed at a positioning portion of the body and has a driving element and a positioning element driven by the driving element. The driving element can be at first and second positions, and thus the positioning element moves in one and another directions of the sleeve hole, so as to enable and disable the positioning of the outer and inner pipes, respectively.一種用於高枝鋸之伸縮管結構包含一內管、一套設且相對內管位移之外管以及一調整裝置，其中調整裝置包括一本體、一迫緊單元及一調整單元，外管可滑移地穿設於本體之套孔，而迫緊單元樞設於本體之迫緊部，用以迫緊內管並止動內管相對外管位移，調整單元設於本體之定位部且具一推動件及一受推動件連動之定位件，當推動件於第一位置，定位件則朝套孔方向位移且定位外、內管，當推動件於第二位置，定位件則朝套孔另一方向位移且解除對外、內管之定位。藉此，本創作不僅具簡化組成構件及繁雜的組裝工序之功效，更能達到降低生產成本者。
