High clearance self-propelled boom sprayer (HCSBS) is a major type of field spraying machine, and spray boom is a key mechanism to realize the stability of spraying work. In recent years, in order to improve the precise spraying level of HCSBS, the structure of spraying boom has been optimized continuously, and the technology of vibration reduction and balance of spraying boom has become more and more mature. Three kinds of truss structures, including plane, triangular space and trapezoid space types of the sprayer were discussed. Main structure parameters of self-propelled sprayer booms at home and abroad were analyzed. Technical status of vibration damping device and intelligent control system were described. Main research results of spray booms on vibration damping, balance and post measurement were summed up. According to statistics, it was concluded that the proportion of sprayers with sprayer span above 20m was only 6.79%, and spray span between 10 m and 14.9m accounted for 73.30%, which indicated that Chinese sprayers were mainly small type with shorter and smaller spray boom compared with foreign sprayers, and its large spray machines only accounted for a small proportion. Based on the above researches, main problems of domestic spray booms were analyzed, and development trend of Chinese spray boom was also pointed out, which included structure optimization of spray boom, development of spray boom series products, settlement of multi-stage and multi-point vibration damping mechanism, improvement of self-balance control and monitoring level, and intelligent adjustment of position and posture. The research would provide references for further structure optimization and performance improvement of spray boom in China.