Abstract: The disadvantages of regular construction technology of urban rail transit parking lot and depot pillar inspection pit include large disturbance of cross-construction, difficult quality control, high labor intensity, and low efficiency. The innovative technology of pillar inspection pit trackless construction is introduced: according to the size of buckle accessories, precise mold is produced to reduce the cross-construction among construction units. Civil construction is only responsible for the construction of track beams and pillar-reserved longitudinal bars. The rest of the construction processes are completed by the paving units. This construction process greatly improves construction efficiency, reducing labor intensity of artificial rails and saving cost of workmanship, which keeps construction quality in better control.