Abstract: At present, there are two ways to get multimedia information from multimedia database. One is applying query language to manipulate information directly,it can exactly tell computer about relative query information,but its user interface is not friendly.The other one is developing query interface,but it is lowly precise.With the development of visual programm language enviroment and the technique of content-based query,it is possible to combine both of them. Therefore,query by visual example and query by pictorial example are connected,and a content-based visual multimedia query language—CBVMQL is designed,in which semantics expression, concept definition, object-oriented expression are combined. CBVMQL not only provides a visual query interface,but supports manipulation exactly of information by automatic query.Otherwise,it implements content-based multimedia query,too.