The utility model relates to a from climbing formula well barrel holder balancing unit, it including the outer balanced hoop of cover disposed on atress support body, locate the balanced outer peripheral of hoop and can be outwards flexible stabilizer blade subassembly and locate balanced hoop and inboard and be used for the loose pulley assembly B of abut against on vertical of atress support body. An object of the utility model is to provide a from climbing formula well barrel holder balancing unit, it can prevent the run -off the straight of elevator shaft lift in -process. The utility model has the advantages of: 1. Balancing unit has guaranteed the perpendicular transportation of atress support body, has prevented its in -process run -off the straight of rising. 2. Loose pulley assembly B can effectively carry out slide steering to the atress support body, improve the atress support body stability of displacement in -process from top to bottom.