Abstract: In recent years, many standards for digital radiography have been formulated. These standards classified as tree types based on the specified contents, i.e. the guiding rule standard, the methodology standard, and the standard of radiographic equipment.The summarized introduction was also provided for classification of radiographic techniques, general requirements, recommended techniques for making digital radiographs specified in ISO 17636-2:2013 and EN 14784-2:2005. The summarized introduction was provided of requirements of equipment, procedural requirements, examination details and quality assurance specified in ASTM E2698-10.