The utility model discloses a split air conditioner tubing movable connecting structure and belongs to the technical field of split air conditioners. The split air conditioner tubing movable connecting structure is good in sealing effect and easy to mount. The split air conditioner tubing movable connecting structure comprises a nut, a tube connector, a connector clamping base and a main O-shaped sealing ring. A connector clamping base through hole, a limiting boss and a sealing groove are formed in the connector clamping base. A matching groove is formed in the tube connector. One end of the connector clamping base can be inserted into the matching groove, so that the through hole of the connector clamping base is communicated with a through hole in the tube connector. The nut is buckled on the limiting boss and is in thread connection with the tube connector. The main O-shaped sealing ring is arranged in the sealing groove in a sleeved mode and is in elastic zero-gap contacting sealing with the inner wall face of the matching groove. The main O-shaped sealing ring is used for sealing, accordingly, the sealing effect is good, in addition, during mounting, coolant leakage due to part damage because of the fact that operation force is too large can be avoided, and accordingly the requirement on operation force is low.