Disclosed in the present disclosure is a method for notification of scrambling code identification signalling group, and the present disclosure comprises: a network side transmits a scrambling code identification signalling group to a receiver; the receiver generates a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group, generates a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and performs channel estimation according to the pilot symbol sequence. The present disclosure also provides a system for implementing the notification of scrambling code identification signalling group. According to the technical solution in the disclosure, the receiver can obtain, according to the scrambling code identification signalling group transmitted from the network side, the scrambling code sequence of the demodulation reference signal and/or demodulation pilot which is the same as that of the network side, and thus interference can be avoided.