The invention discloses a rotatable high-pressure long-service-life multichannel connector. A bolt capable of achieving quick replacement assembly with a hydraulic system is embedded into an adjustingnut, a spring is installed at the end, embedded into the adjusting nut, of the bolt, a stopping ring is installed at the bottom of the bolt, a fixing shaft is installed at the lower portion of the adjusting nut, two pipes are machined on the fixing shaft without mutual noninterference, and the fixing shaft is sleeved with at least two rotating sleeves; steel balls are installed between the fixingshaft and the rotating sleeves to form bearing structures, a piston wide plugging seal is used for sealing, the rotating sleeves are a plurality of independent seals, and each rotating sleeve is provided with a P oil inlet, a T oil inlet, a P oil outlet and a T oil outlet according to needs. The rotatable high-pressure long-service-life multichannel connector has the beneficial effects that the structure is simple, rotation is flexible, the rotating radius is small, installation is convenient, multiple channels can be achieved, and oil inlets and oil outlets rotate around the axis.