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China is a large developing country. Under recent policies, the aviation industry has grown quickly. The bird-strike events have also increased rapidly, with 170 birdstrikes recorded from 1991 to 1997. The Civil Aviation Administration of China (CAAC) monitored these trends closely, and ABSAC was formed. We imported some products from the USA, which imitated a bird’s distress call, but these products didn’t work well in China. CAAC entrusted Tsinghua University to solve this problem. SBS company of Tsinghua University, led by Professor Xi Boa Shu took this task. For two years, SBS manufactured a series of products to prevent birdstrikes. Among these, we used powerful acoustic waves to disperse birds, and progress was made.