Error correction method and apparatus of video caption wrongly written characters based on comparison

The embodiment of the invention provides an error correction method and apparatus of video caption wrongly written characters based on comparison, and relate to the technical field of smart TV. The phenomenon that wrongly written characters occur in captions is reduced, and the user experience is improved. The method comprises the following steps: obtaining n caption files, and determining an application caption file and a backup caption file in the n caption files, wherein the n is an integer larger than 2, and the application caption file is a caption file that is to be used by a playing device; dividing each caption file in the n caption file into at least one caption array, wherein the caption array contains caption items and playing times corresponding to the caption items; sequentially performing caption check on the at least one caption array of the application caption file according to at least one caption array of the backup caption file; and when the wrongly written characters are detected in the at