The application is applicable to the technical field of wireless communication, provides a method for scanning wireless networks, a mobile terminal and a storage medium. The method includes the following steps: after successful connection to a wireless network, monitoring the signal strength value of the currently connected wireless network; if the signal strength value of the currently connectedwireless network is smaller than a signal strength threshold, confirming whether there are other wireless networks associated with the currently connected wireless network, wherein the other wirelessnetworks are wireless networks other than the currently connected wireless network; and if there are other wireless networks associated with the currently connected wireless network, issuing an eventof scanning other wireless networks. Invalid scanning events can be avoided, and power can be saved.