The invention relates to a construction technology of a double-block type ballastless track, which comprises the steps of construction preparation; paving of longitudinal steel bars; sleeper arrangement; assembly of a track panel; rough adjustment of the track panel; installation of a template; fine adjustment of the track panel; pouring of concrete; maintaining and detaching a support tool track; and trimming of the track. Therefore, the construction technology can solve the problem of optimizing the construction technology of the double-block type ballastless track, shorten the construction progress of the double-block type ballastless track and protect the construction quality of the double-block type ballastless track. The construction technology is characterized by high-efficient construction and configuration and can ensure the normal and high-efficient construction of the double-block type ballastless track.