Embodiments of the present invention provide a signal processing method and device. The method includes: receiving soft information corresponding to encoded signals sent by at least two base stations and CRC check results of decoding results of first subflows in the encoded signals, where the soft information includes first soft information corresponding to the first subflows; obtaining a selective combining result of the first subflows by performing selective combining according to the at least two CRC check results of the decoding results of the first subflows; and if the selective combining result of the first subflows is that CRC check is incorrect, determining a soft combining result of the first subflows according to at least two pieces of the first soft information. The signal processing method and device provided in the embodiments can increase a signal gain.