Embodiments of the present invention provide a power management method, an electronic device and a power adapter, capable of improving the charge safety. The method is executed in an electronic device charged by a power adapter via a charge cable. The method includes: determining a temperature of a charging interface, in which the charging interface includes at least one of an interface of the power adapter for electric connection with the charging cable, an interface of the charging cable for electric connection with the power adapter, an interface of the charging cable for electric connection with the electronic device, and an interface of the electronic device for electric connection with the charging cable; and managing power of the electronic device according to the temperature of the charging interface.