With the development of underground space engineering, super-deep underground diaphragm wall becomes more and more popular, consequently resulting in the increasing risk in construction. This paper discussed and analyzed the construction technology of super-deep underground diaphragm and the existing problems according to the field experience with the relevant solving methods. In a word, by untilizing the proper technologies, the engineering of super-deep underground diaphragm wall can be successfully conform to the design reqirments.