Television signal source navigation and switching method

The invention discloses a television signal source navigation and switching method which includes the steps: a, monitoring whether all signal source interfaces have real-time inserts or not, monitoring whether all signal sources are changed from no signal input to signal input or not, displaying signal input of the corresponding signal source on a user interface and prompting a user to switch or not if a signal source insert or signal input is detected, and switching a television to display the corresponding signal source if the user selects switching; and b, monitoring the change state of a currently played signal source, displaying all the signal sources with signal input on the user interface and prompting the user to switch or not if the signal sources are changed from signal input to no signal input, and switching the television to display the corresponding signal source if the user selects switching. By the method, the user can be intelligently guided to conveniently and rapidly switch the signal sources.