A virtual world processing apparatus and method. Information on sensor capability is converted to binary data and then transmitted, or converted to eXtensible Markup Language (XML) data, or the XML data is further converted to binary data and then transmitted. Accordingly, data transmission rate may be increased and a low bandwidth may be used. In a data-receiving adaptation real world to virtual world (RV) engine, complexity of the adaptation RV engine may be reduced by omitting an XML parser.