Anti-interference device and method for double-mode electronic equipment

The invention discloses an anti-interference device and method for double-mode electronic equipment, which can be applied to the double-mode electronic equipment. The device comprises a first communication module corresponding to a first communication mode and a second communication module corresponding to a second communication mode, wherein the lowest frequency of the first communication module working on a first frequency band is higher than the highest frequency of the second communication module working on a second frequency band; the first communication module comprises a transceiver, a power amplifier connected with the transceiver, an antenna switch and an antenna connected with the antenna switch; a low-frequency filtering link is arranged between the power amplifier and the antenna switch; the low-frequency filtering link is applied to low-frequency communication on the first frequency band in the first communication mode; a first filtering module is arranged on the low-frequency filtering link; and the first filtering module is used for attenuating signals lower than the first frequency band. Through adoption of the anti-interference device and method, stray interference outside the working frequency band of the first communication mode on the sensitivity of the second communication mode is prevented on the basis of not influencing normal communication of the second communication mode.