The invention provides a receiving method of a digital broadcast television. The receiving method of the digital broadcast television includes the following steps that: in a playing stage, whether decoding information corresponding to a program channel exists in a matched database is judged; if the decoding information does not exist in the matched database, it is judged that the total number of transmission layers is one; and when the total number of the transmission layers is one, the transmission layers are decoded through adopting a single layer iterative decoding method, and iterative decoding markers in decoding information are updated to enabled states, and the number of the transmission layers in the decoding information is recorded as one.