The utility model relates to a gardening tool extension rod.The utility model comprises an outer tube which is sequentially sleeved from the outside to the inside.One middle pipe and one inner pipe,The outer tube and the middle tube are combined with a first tightening unit.The middle tube and the inner tube are combined with a second tightening unit.With the installation of the first tightening unit and the second tightening unit, the outer pipe can be stopped at the lower limit of normal state.There is no relative rotation between the middle tube and the inner tube.When the outer tube,After the expansion and adjustment of the middle pipe and the inner pipe are completed,By the operation of the first tightening unit and the second tightening unit,The middle tube and the inner tube are tightly positioned.一種園藝工具伸縮桿，其包含有由外往內依序相套的一外管、一中管與一內管，所述的外管與中管間結合有一第一迫緊單元，所述的中管與內管間結合有一第二迫緊單元，以該第一迫緊單元與第二迫緊單元的安裝能在常態下限止所述外管、中管與內管不產生相對的旋動，當所述外管、中管與內管完成伸縮調動後，則還能藉由該第一迫緊單元與第二迫緊單元的操作，讓所述中管與內管獲得束緊定位。
