The invention discloses a push-in radio-frequency coaxial connector isolation method. A push-in radio-frequency coaxial connector is used for connecting a first module and a second module, wherein theconnected surfaces of the first module and the second module are oppositely provided with at least one pair of socket apertures; the push-in radio-frequency coaxial connector comprises sockets arranged in each pair of socket apertures and plugs for connecting each pair of sockets; and the push-in radio-frequency coaxial connector isolation method comprises the steps as follows: a metal spacer isarranged between the connected surfaces of the first module and the second module; a plug hole which is the same as each plug in outer diameter is formed in the position, opposite to each plug, of themetal spacer; and the metal spacer is used for filling a gap between the connected surfaces of the first module and the second module. According to the push-in radio-frequency coaxial connector isolation method, the metal spacer has good shielding property on a radio-frequency signal through being grounded in contact with a housing, so that leakage of the radio-frequency signal is effectively reduced.