With the growing maturity of wireless sensor network technology and its popularization in the field of environmental monitoring and other fields, the research of micro fluid generator for its power supply has been widely concerned by domestic and foreign scholars, and the wind energy harvester based on the piezoelectricity has become a research hotspot.Firstly, the advantages and characteristics and application occasions of the existing piezoelectric wind harvesterare introduced. Secondly, the development and research progress of the directexcited piezoelectric wind energy harvester(DEPWEH) areanalyzed and summarized, and the main structures,principle, characteristics and applications of DEPWEH summarized. At the end, it is pointed out that the directexcited piezoelectric wind energy harvesters are mainly beamtype structures, and the vibration modes are mainly flutter and galloping. There is still no unified mathematical model and the existing generators have the disadvantages of low structural reliability/stability. With the development trend of broadband, high reliability and cluster layout, the further development and applications of directexcited piezoelectric wind energy harvester are expected.