The invention relates to the field of pipe joint devices, and specifically relates to a rapid joint of a pipeline. The rapid joint of the pipeline comprises an outer connecting protecting part which wraps the outer wall of the pipeline, and a fixing device which is arranged on the outer connecting protecting part, wherein the outer connecting protecting part comprises a pipeline inlet; a fixing clamping block is arranged at the outer wall of the outer connecting protecting part and is close to the pipeline inlet; the fixing device is rotatably connected to the fixing clamping block through a rotating shaft; when fixing a pipeline, the fixing device is connected to a fixing clamping buckle column on the outer connecting protecting part; and the fixing device consists of a fixing head, and ahandle which is connected to the fixing head. According to the rapid joint of the pipeline, the fixing device is rotated around the rotating shaft; after a pipeline is mounted, the handle is rotatedtoward the outer connecting protecting part and then is connected to the fixing clamping buckle column in a clamping buckling manner; the fixing head rotates and then extends out of the inner wall ofthe outer connecting protecting wall in order to fix the pipeline, and thus the pipeline can be stably assembled into the rapid joint of the pipeline; and the rapid joint of the pipeline is quick to connect and mount.