A fixing support system for an air conditioner pipeline comprises a fixing support. The fixed bracket comprises a fixed frame and a vertical support supported at the bottom of the fixed frame; a set of fixing frame units used for fixing an air conditioner pipeline are arranged in the fixing frame. Wherein each fixed frame unit is correspondingly arranged on the outer side of each air conditioner pipeline in a sleeving manner; sole timbers are arranged around each air conditioner pipeline and located on the frame edges of the fixing frame units, and limiting baffles are arranged on the outer sides of the sole timbers in a surrounding mode; rib plates are arranged at the positions, corresponding to the sole timbers, of the outer side wall of the air conditioner pipeline, and the air conditioner pipeline is fixedly connected with the sole timbers through the rib plates. The air conditioner pipeline fixing support system solves the technical problems that a traditional air conditioner pipeline fixing support system is prone to condensation, and the firmness of a support is low.