A linked waist support for a waist belt is provided. The waist belt is formed by two strip-like woven fabrics which are connected by a fastening strap, and includes a first end link unit and a second link unit at two ends thereof. The linked waist support is disposed between and partially overlapped by the first end link unit and the second end link unit. The linked waist support comprises a base plate, a first side link unit disposed on the base plate and correspondingly linked to the first end link unit via a first linking cable, and a second side link unit disposed adjacently to the first side link unit on the base plate and correspondingly linked to the second end link unit via a second linking cable. Thus, without unfastening the waist belt, tightening force of the waist belt can be adjusted and changed with ease.
