A lifter with linkage mechanism includes a frame being movably on floor, a lifting mechanism disposed on the upper portion of said frame and a loading plate jointed with the lifting mechanism. The lifting mechanism includes a lifting arm with a lifting driving box. Two four-bar linkage mechanisms are jointed with a first end of the lifting arm, while a second end of the lifting arm is rotatablely jointed with the frame. The frame includes a horizontal base seat and two columns with vertical guiding groove respectively symmetrically disposed on left side and right side of the horizontal base seat. A crossbeam is coupled between two columns. The four-bar linkage mechanism is disposed between two columns, and the four-bar linkage mechanism is respectively jointed with the loading plate and the lifting arm. In the present invention, the loading plate will be well guided and move freely. The structure of the cantalever style loading plate is simple; it is suitably applied in the double-deck parking garage.