The invention discloses an auxiliary vacuumizing and automatic mud jacking integrated machine for railways. The auxiliary vacuumizing and automatic mud jacking integrated machine for railways comprises a rack, an automatic mud jacking system and a vacuumizing system, wherein the automatic mud jacking system and the vacuumizing system are arranged on the rack. The automatic mud jacking system comprises a feeding system, a high-speed and low-speed stirring system, a static weighing system, a mud jacking and pressure stabilizing system, an environmental protection dust removal system, an automatic control system, a data storage and transmission system, an equipment self-inspection system, a cleaning system and an alarm system. By means of the novel vacuumizing and automatic mud jacking integrated machine, the purpose of conducting vacuumizing and mud jacking work at the same end of a pipeline is achieved, one-key operation of the work is achieved by adopting the uniform central control system, operation control is simplified, the automatic operation and control degree of the vacuumizing and mud jacking work are improved, accurate feeding and weighing, stable and continuous mud jacking and controllable flow are achieved, plumpness of mud in the pipeline can be guaranteed, and the whole construction process is environmentally friendly and free of pollution.