Electricity-saving method and electricity-saving mobile terminal

The invention discloses a power-saving method and a power-saving mobile terminal. The method comprises that the terminal is equipped with receiving signal information which changes synchronously with a receiving signal; the terminal is sleeping when signals cannot be received normally; the appearing time of a beaconing is determined according to the receiving signal information under the state ofsleeping, so as to inquire the beaconing. The mobile terminal comprises a decoding module used to receive signals from a broadcasting network, and a control module used to configure the receiving signal information which changes synchronously with a receiving signal, inside the terminal and close the decoding module when the decoding module fails to receive a signal normally. Moreover, the control module is also used to determine the appearing time of every beaconing according to the receiving signal information and wake up the decoding module to inquire the beaconing, when the decoding module is at the state of closi