A decoding method of detecting a transmission error region and recovering correctly decoded data and a decoding apparatus using the same. The decoding method includes comparing encoding status information with decoding status information by receiving encoded data and the encoding status information of at least one synchronization point set in every predetermined period to detect a transmission error and to obtain the decoding status information of a corresponding synchronization point while decoding the encoded data, and continuing to decode the received data if the encoding status information of the at least one synchronization point is the same as the decoding status information of the corresponding synchronization point, and recovering previously decoded data before a previous synchronization point by detecting a transmission error region between the corresponding synchronization point and the previous synchronization point if the encoding status information is different from the decoding status information. It is possible to detect an error for each synchronization point and recover data positioned in a region having no error.