A forklift is mainly composed of a forklift body, a lifting frame, a transverse guide rail, a longitudinal guide rail, a transverse driving cylinder, forks, a longitudinal driving cylinder, a weighingsensor and a data collection and display system. According to the forklift, the two forks can be driven by the transverse driving cylinder to horizontally move, the opening-closing range of the two forks can be controlled by controlling the transverse driving cylinder to adapt to carrying of cargos with different sizes, meanwhile, sensors on the forks can measure force borne by the forks correspondingly, the force is displayed to a forklift operator through the data collection and display system, therefore, the operator is helped to judge whether the forking position of the forklift is reasonable or not and whether cargos are stable on the forks, once it is found that the difference of two measuring force is too large, cargos can be placed down, the forks are driven to horizontally move,and the forking position is adjusted again. In addition, by means f the longitudinal guide rail, the two forks can move up and down within a certain range, carrying requirements of special cargos aremet, and the application range of the forklift is enlarged.