The present invention relates to a frozen well retractability wall joint and its construction method. It is characterized by that a circular ring-shaped cylinder body whose section is made into 'H'-shaped structure is set, its top portion is upper flange, its bottom portion is lower flange, between the upper flange and lower flange at least two turns of ring-shaped vertical plate are set and used for bearing longitudinal pressure; on the periphery of said circular ring-shaped cylinder body, between the upper flange and lower flange an arc-like plate for bearing horizontal pressure is cross-connected; on the internal circumferential surface of said circular ring-shaped cylinder body an asphalt injection hole is cut on the inner layer vertical plate. On all the ring-shaped vertical plates the through asphalt injection holes are respectively cut; several the invented joints are vertically set along the well wall of said frozen well, said joints can effectively reduce the additional force vertically acted on the well wall so as to ensure wellbore safety and effectively prevent well wall from cracking.