The invention discloses an adjustable hoe which comprises a handle. A hoe body is movably connected into the handle, clamp grooves are formed in the top of the hoe body, the right side of the hoe bodypenetrates the handle and extends out of the handle, an accommodating groove is formed inside the handle, a turntable is arranged on the back surface of the handle, a transmission rod is fixedly connected with the front surface of the turntable, and the front surface of the transmission rod penetrates the accommodating groove, extends into the accommodating groove and is fixedly connected with afirst gear. The adjustable hoe has the advantages that the clamp grooves, the accommodating groove, the turntable, the transmission rod, the first gear, a second gear, a disc, a bearing, a fixing column, a movable frame, sliders, slide grooves and a clamp rod are used with one another, accordingly, effects of adjusting the length of the adjustable hoe can be realized, and the problem of intensification of labor intensity of users due to the fact that the lengths of existing hoes cannot be adjusted and the existing hoes are quite inconvenient when used by the different users can be solved.