The invention provides a method for carrying out multi-cell tracking and scheduling by using a WCDMA system. By adopting the characteristic that the WCDMA scrambling code is a pseudo random sequence code and has good self-correlation and poor cross correlation, only part of the length of the scrambling code can be generated in the actual process, the synchronous tracking performance can be met, the approximate frame head location of the neighbor cell can be estimated by using the time offset of the neighbor cell, and then the window length is selected and part of the length of the scrambling code is correlated to carry out neighbor cell search; and part of the scrambling code that meets the performance conditions is selected for correlation, and thus the problems of signal to noise degradation and the like possibly caused by the accumulation of frequency offsets and other influence during full scrambling code correlation can be avoided.