The 20th century international societies regarding endangered the humanity seriously peaceful and the safe international criminal offense trial practice have experienced the service tribunals, the ad hoc international criminal court, the conventional international criminal activity court three stages. 二十世纪国际社会对于严重危及人类和平与安全的国际刑事犯罪的审判实践经历了军事法庭、特设国际刑事法庭、常规国际刑事法院三个阶段。