A self-compensating direct quick-connection pipeline comprises a left head 1, a pipeline 2, a right head 3 and a rubber sealing ring 4, is used for the contra-aperture quick connection of pipelines, and solves the defects that the prior pipe connection technique has high cost and poor practicability, wherein the left head 1 is inserted into and spirally buckled with the inner cavity of the right head 3, the rubber sealing ring 4 is compressed and sealed therein. The pipe fittings and valves of the self-compensating direct quick-connection pipeline are resistant to high pressure, medium pressure and low pressure, do not pull screw thread, are not welded, are not in flange mode, channeling mode and electric heating melting mode, are not additionally added with a compensator, are capable of realizing direct contra-aperture quick connection of the pipelines in severe environment conditions, such as lofty mountains and steep hills, deserts, water of rivers, lakes and seas, narrow space, windy, rainy, high-temperature and chill weather, combustible and explosive places, provide self-compensating lockable rigid-flexible omnibearing safety sealing, save labor and time, and have low cost, high efficiency, energy conservation and environment protection. The invention provides the self-compensating direct quick-connection pipeline for conveying fluids.