Mobile network rapid deactivation method and device and mobile terminal

The invention discloses a mobile network rapid deactivation method and device and a mobile terminal, and the method comprises the steps: generating a deactivation enabling signal for a first mobile network when the mobile terminal is monitored to be in a preset working mode; judging whether the mobile terminal is currently accessed to a first mobile network or not; if the mobile terminal accessesthe first mobile network, generating a weak signal signaling under the first mobile network according to the deactivation enable signal; reporting the weak signal signaling to a network end, so as toenble the network end to generate a release network configuration signaling for the first mobile network according to the weak signal signaling; and switching the first mobile network to an inactive state according to the release network configuration signaling received from the network end, so tas to enable the mobile terminal to access the second mobile network. According to the technical schemeof the invention, the weak