A wireless communication device is provided to make it possible to detect errors with high accuracy while to suppress reduction in throughput in the case that an LDPC (Low-Density Parity-Check) code is used for an error correcting code. In the wireless communication device, a CRC (Cyclic Redundancy Check) coding unit (101) for carrying out a CRC coding of a part of a transmitting bit sequence in accordance with a row weight of an examination matrix of the LDPC code, an LDPC coding unit (102) for carrying out the LDPC coding and generating LDPC coding data by using the same examination matrix as used for the LDPC coding carried out in the CRC coding unit (101).