The invention discloses a T-type cable connector quick pulling-out device and a pulling-out method. The pulling-out device comprises an inflation pump, a plug and a valve core. The pulling-out method comprises the steps of 1), taking an original plugging head from a T-type cable connector; 2), enabling the plug of the T-type cable connector quick pulling-out device to be connected with the T-type cable connector; 3), connecting the inflation pump, the valve core and the plug in sequence; 4), inflating the T-type cable connector through the inflation pump; and 5), stopping inflation when a connection part of the T-type cable connector and a wall bushing on a ring main unit is loosened, and pulling the T-type cable connector out from the wall bushing. According to the invention, the junction of the T-type cable connector and the wall bushing is enabled to be loosened by using air pressure, so that the T-type cable connector can be pulled out from the wall bushing on the ring network cabinet easily, and the work efficiency can be greatly improved. In addition, the T-type cable connector is uniformly stressed in the pulling-out process, and a cable head is not damaged.