The utility model discloses a sliding support for a process pipeline. The sliding support comprises an upper bearer, a lower bearer, a cross shaft, bearings and a base, wherein the cross shaft is positioned between the upper and lower bearers, and is assembled with the upper and lower bearers through the bearings; the lower bearer is arranged on the base; steel balls are arranged between the lower bearer and the base. According to the sliding support, the process pipeline can horizontally move in axial and radial directions, and can also rotate in three planes, the requirements of the process pipeline on free deformation can be perfectly met, and the using safety of the process pipeline can be ensured; the sliding support has the characteristics of simple structure, simple manufacture process, high mounting speed and the like, and is universal for various industrial and civilian process pipeline systems and wide in application range.