The invention discloses an agricultural hoe easy to disassemble. The hoe comprises a sliding block and a hand holding rod, during the operation process, by rotating a handle, a rotating disk is drivento rotate, a rotating rod is rotated, a first helical gear and a second helical gear are rotated successively, thereby driving a threaded rod to rotate, a sleeve rod can move along the threaded rod,the sleeve rod moves an appropriate distance, the rotation of the handle is stopped, the appropriate distance of the sliding block is adjusted, a suitable length is provided for the hand holding process of people, two symmetrically placed T-shaped rods inside a cavity are squeezed, a second spring is squeezed, a fixing ring sleeves the hand holding rod, a squeezing block and a first spring are squeezed, during the disassembling process, the two T-shaped rods are pressed, and the fixing ring is subjected to elastic force of the first spring to remove one end of the entire hand holding rod. Thehoe can be adjusted to an appropriate length, facilitate the operation of people with different arm lengths, can conveniently install or disassemble a tool, and facilitate regular cleaning and tool polishing, thereby prolonging the service life of the entire hoe.