This invention relates to one common plug play method in EPG system about private and self definition in digital television broadcast technique, which uses DVB business information rules description to convert into two bit character string property less than 255 bits, which comprises the steps of definition characters and generating description content and storing to center database, description character plug and play and test, wherein, description plug aiming at network ID, TS and business ID class for user to define and operate based on DVB business information. |