Airy beam has gained a widespread atlention owing to its particular properties: approximate nondiffraction, self-accelerating in the transverse and self-recovery as a member of non-diffraction light family. Airy beam has a broad application prospect in optoelectronic sciences, particle manipulation, atmospheric communication and so on. The main methods of Airy beam generation are summarized and a deep analysis for each method is made from the cost of the system, how complex to come true and potential of applications, and some improving and perfecting suggestions are given.