The present application provides a modem and a network search method of the modem. The method includes: sampling a signal level value and a signal quality value of a serving cell; obtaining a signal power condition according to the signal level value, and obtaining a signal stability condition according to the signal quality value; and when both the signal power condition and the signal stability condition are higher than set conditions, determining a network search state as an off state. In embodiments of the present application, power consumption and a workload may be reduced.