Optical tweezer is an important technique that utilizes the interaction between momentum of light and matter to produce light potentials and then realize particle trapping. Optical tweezer is widely used in the field of nano- or micron-scale particle capture and manipulation. The development of today′s technology and demands puts forward higher requirements for beam transformation of optical tweezers. Therefore, it is necessary to shape the light beam to obtain the required light field distribution of the optical tweezers. We follow laser beam shaping devices, and the applications of prism, diffractive optical elements, spatial light modulators, digital micro-mirror devices, optical fibers and other optical components in the optical tweezer system are introduced. Typical shaping optical paths of these devices are listed, and recent advances in beam shaping of these devices are presented. Characteristics of the methods mentioned above and their corresponding capture abilities in the shaping design of the capture light source are introduced as well.