Program switching method and device, television and readable storage medium

The invention discloses a program switching method, a device, a television and a readable storage medium. The method comprises the following steps: when a program switching instruction is received, requesting to obtain a program description information table USD corresponding to a target program according to a target program identifier in the program switching instruction, taking the program description information table USD as a target USD, and obtaining a target program content identifier of the target program in the target USD; Judging whether a target resource package identifier corresponding to the target program content identifier exists in a preset mapping table or not; And if the target resource package identifier exists in the preset mapping table, obtaining and playing corresponding target program data according to the target resource package identifier so as to switch the current program into the target program. By presetting the mapping table, the program switching time consumption is reduced, the