Abstract: To research on cracking of the steel,it is necessary to identify the crack characteristics and the elements responsible for development thereof. Based on related analysis,the causes for development of the cracks are initially identified,and accordingly actions for improvement are taken. Thanks to repeated efforts,the cracks have been finally eliminated. Proposals for researching on cracking of the steel are put forward,including appropriate application of knowledge of all the disciplines concerned,gathering site experiences and successful experiences of others,getting command of relevant mathematic statistic methods and physical testing methods as well as enhancing research ability,etc.