The invention relates to a quick connect fitting for shunting tubules, belongs to the technical field of branch connection devices of a fluid convey pipeline, and aims to solve the technical problems that a large amount of welding equipment is needed in the process that a welding method is used for a branch tubule in a conventional fluid convey pipeline, an opening in the pipeline is easy to generate rips and even crack, so that the safety is low, pressure which can be borne by the pipeline is limited, the specifications of the branch tubule are strictly limited, and the requirements of the market cannot be met. The quick connect fitting comprises a leakproof fixing device capable of strengthening the pipeline and a branch tubule, a leakproof threaded connection part is arranged at one end of the branch tubule, the leakproof fixing device is arranged on the pipeline with the opening, and a threaded hole of the leakproof fixing device corresponds to a hole in the pipeline; the branch tubule is in threaded connection with the leakproof fixing device. The quick connect fitting disclosed by the invention has the advantages of being simple in structure, convenient to use, simple to operate, and simple to repair and maintain, the intensity of a large pipeline with the opening is guaranteed, and the intensity is not limited by the material of the pipeline and the using environment.