Abstract: A method and apparatus for starting a system on chip, this method includes: enumerating all interfaces which are able to start after the system on chip is powered on and an initial boot program is started; and reading measurement data of each starting interface in sequence, and when it is detected that a certain starting interface has connected with a starting device and this starting device is the only, load a subsequent boot program from this starting interface to complete system starting. The method solves the problem that the system on chip is only able to be started in the fixed configuration from the fixed interface or device, and the system on chip is unable to be started once the external starting environment changes existing in the prior art.