The invention discloses a low-frequency interference measuring and filtering method for a rail traffic vehicle. The low-frequency interference measuring and filtering method for the rail traffic vehicle comprises analysis on the reason of interference, low-frequency interference measuring and locating, and low-frequency interference filtering. The reason of the interference is analyzed; furthermore, far-field and near-field low-frequency interference measuring and locating are combined; and finally, due to a low-frequency interference filter, the rail traffic vehicle overcomes the disadvantagethat normal radio communication of a driver is interfered, even no communication, due to the fact that the low-frequency radiation interference in an internal electromagnetic environment is greater than a GOST authentication standard value.