The invention belongs to the technical field of pipeline supporting, and relates to a bridge pipeline supporting element. The supporting element comprises a pipeline fixture, a detachable fixing mechanism and an installation regulation mechanism. When the bridge pipeline supporting element needs to replace or repair a pipeline, a clamping block is controlled to move through a stirring plate; and two spacing mechanisms are triggered through the movement of the clamping block to lose restriction for two spacing gears, i.e., two first spindles for installing two spacing gears can freely swing, two pipeline fixtures for fixing the pipeline can freely swing to be opened, the pipeline is taken down, and replacement or repairing can be carried out without taking down all supporting elements. By use of the pipeline supporting element designed by the invention, if the detachable fixing mechanism needs to be replaced or repaired, the clamping block can be controlled to move through the stirringplate, the clamping block moves to a first slope arranged on the fixing block, then, the detachable fixing mechanism is outwards pulled out, and replacement or repairing can be carried out without taking down all supporting elements.