A gardening tool quick-releasing device, which is utilized for connecting a transmission rod and a gardening tool that is provided with a connection pipe, comprises a connection assembly and a lock assembly. The connection assembly comprises a first connection part and a second connection part, in which the first connection part has a first space for arranging the connection pipe, and the second connection part has a second space for arranging the transmission rod. The lock assembly, which is arranged on the first connection part of the connection assembly, is utilized for limiting or releasing the connection pipe in the first space of the first connection part. Accordingly, with the disclosed gardening tool quick-releasing device, an effect of convenience for a user to quickly change a gardening tool can be attained.一種園藝工具快拆裝置,用以連接一傳動桿以及一園藝工具,園藝工具更包含一連接管,園藝工具快拆裝置包含一連接組件以及一卡掣組件,連接組件具有一第一連接部以及一第二連接部,第一連接部具有一第一空間用以設置連接管,第二連接部具有一第二空間用以設置傳動桿,卡掣組件設於第一連接部並且可用於限位或鬆脫上述連接管於第一空間。藉此,本創作可以讓使用者快速的更換園藝工具,進而達到便利的效果。