Quality Control for data from automatic weather stations is very important with the development of society and technology. Beijing Meteorological Bureau has cre ated realtime Quality Control system for automatic weather stations (AWS) whic h has applied on the 2007 Olympic Games Drilling. The scheme of Quality Control for data mainly includes methods, such as plausible value check, time c onsistency check, internal consistency check, history value check, spatial check , etc. The application of the data quality control system to 2007 Olympic Games Drilling in Beijing area shows that Beijing AWS data is reliable, but there are some problems on missing and timely data. This system will become a good example of real-time processing for AWS Quality Control in Beijing 2008 Olympic Games weather servic es.