A dust collecting filter for a vacuum gauge is provided to prevent malfunction of the vacuum gauge by filtering foreign material included in the air flowing in the vacuum gauge. A dust collecting filter(100) for a vacuum gauge comprises a filter housing(110) to which a first connector(116) and a second connector(118) are connected to rotate, a compartment plate(120) installed on a protrusion(113) to partition off an installation space(111), a pair of dust collecting plates(130) forming an air passage between with the installation space, a pair of connecting plates(140) with apertures(141) and coupling holes(143) on the inner side, and a coupling pin(150) whose both ends are fixed to the coupling holes. The filter housing provides a travel path of vacuum pressure a chamber and the vacuum gauge. The dust collecting plate removes foreign material in the air traveling in a vacuum state.
