The invention provides a multi-section telescopic rod. The multi-section telescopic rod solves the technical problem that in the case of an existing multi-section telescopic rod, when multiple sections of the telescopic rod need to be used for the extension operation, a rod body of the telescopic rod is relatively large in swinging amplitude under the action of external force and then is not easyto control. The multi-section telescopic rod is provided with n sectional rods, n-1 joints and n-1 connecting lock pieces, wherein n is a positive integer not smaller than 2; and a cylindrical first locking through hole and a cylindrical second locking through hole which communicate with each other are formed in each connecting locking piece, the hole diameter of each first locking through hole isthe same as the outer diameter of the corresponding front sectional rod, moreover, each first locking through hole is connected with the outer wall of the corresponding front sectional rod in a sliding fit mode, the hole diameter of each second locking through hole is the same as the outer diameter of the corresponding rear sectional rod adjacent to the corresponding front sectional rod, and eachsecond locking through hole is connected with the outer wall of one end of the corresponding rear sectional rod adjacent to the corresponding front sectional rod in a fastening mode. The multi-section telescopic rod can be widely applied to the technical field of telescopic pipes.