A construction technology of a large-pipe-diameter pipeline under double-type cryogenic thermal insulating includes the following construction steps that firstly, a prefabricated welded junction of a pipeline to be installed is welded so that a plurality of pipeline sets can be formed; secondly, a welding pipe base, a plurality of cryogenic supports and a welding portion of a diameter punching pipe are installed on the pipeline sets; thirdly, a drag rope is arranged in one pipeline set, an argon punching partition plate is arranged on the pipe opening of another pipeline set, and the two pipeline sets are hoisted in place; fourthly, the traction rope in one pipeline set is connected with the argon punching partition plate on the pipe opening of another pipeline set, and on-site argon punching welded junction welding is performed on the argon punching partition plate; fifthly, the fourth step is repeatedly executed till the argon punching welding on the later pipeline sets is completed; sixthly, the argon punching partition plate and the drag rope are removed after nondestructive testing; seventhly, installation of a non-welding portion of the diameter punching pipe is completed; and eighthly, pressure testing is performed on the pipeline sets which are welded together. By means of the construction technology, the large-pipe-diameter pipeline can be welded in groups, and a large amount of on-site welding time and construction cost are saved.