Jacking condition must be considered when maintaining and replacing parts of a civil aircraft.In this paper, relevant airworthiness standards is be analyzed, and the advantages and disadvantages of the B737 and A320 aircraft wing lifting devices is compared,through the force transmission analysis. Vertical component of the B737 wing jacking load is borne by the reinforcing rib and pass to the front spar,horizontal component is borne by the lower skin through the bearing.Vertical component of the A320 wing jacking load is borne by the reinforcing rib and pass to the rear spar, horizontal component is borne by the lower skin and the reinforcing rib through the bearing. The aircraft wing jacking connection joints of B737 is simple,but the force transmission of A320 aircraft wing lifting connection is clearer.