The invention relates to a water flushing brush, in particular to a multifunctional water flushing brush handle. The multifunctional water flushing brush handle comprises a shell, a cleaning liquid bottle, a liquid suction pipe and a water inlet pipe, a liquid suction cavity is formed in the intersected area of the liquid suction pipe and the water inlet pipe, a liquid suction switch is arranged on the liquid suction cavity, the cleaning liquid bottle is further connected to the liquid suction cavity, the principle that the pressure inside the liquid suction cavity is changed into the negative pressure when high-speed water flow passes through the liquid suction cavity is used for sucking up cleaning liquid to enable the cleaning liquid and the high-speed water flow to be mixed to be jetted out, and meanwhile a cleaning device driven by the water flow can be further assembled in front of the liquid suction pipe to enable a cleaning person to greatly reduce manual labor during cleaning. Compared with the prior art, the multifunctional water flushing brush handle has the advantages that damping, cleaning liquid feeding, cleaning and flushing can be integrated, a cleaning head is driven by the water flow to rotate, cleaning work becomes easy from complex, a large amount of manual labor is saved, the cleaning efficiency is improved, and meanwhile jetting work can be normally carried out only through the pressure of tap water. The multifunctional water flushing brush handle can be applied to the field of car cleaning and can be further applied to cleaning articles such as carpets, rubber mats and tiles.