The embodiment of the invention discloses a method for the audible expression of geographic information on the basis of digital home. The method comprises the following steps of: step 1, information acquisition, i.e., determining a sound source; step 2, information processing, more particularly, normalizing various information to form application data for follow-up processing, i.e., characteristic data; step 3, information mapping, i.e., matching various input signals with the corresponding mapping rules to achieve the purpose of audibility, and using various mapping models to acquire the parameterized sound according to different characteristic data; step 4, sound synthesis, i.e., generating the parameterized sound; and step 5, sound playing. The method is superior to other channels when sudden changes take place to information or the load of the vision channel is over-high; and the audible expression is superior in the aspects of voice reading, atmosphere creation and immersion expression of geographic information.