The Application and Research of Search Engine Web APIWAN Min,SHEN Yang,LIU Xiu-yu (Computing Center, Wuhan University, Wuhan 430072,China)The Web API of search engine provided a convenient way for the user to search on the Internet. User can immediately complete mission of search without the search website. Domestic research of this was placed in the start stage. the paper put forward a frame design of search engine Web API which based on the standard of SOAP and WSDL. The article introduced the structure, function of the frame systematically, carries on the expatiation towards interface method and the parameter definition was also discussed with an example.search Engine; Web API; Web Service; SOAP; WSDL