The invention discloses a 5G network-based adaptive switching trigger strategy implementation method. The method comprises the following steps of realizing the calculation of track similarity by utilizing a Fast DTW algorithm; based on the obtained trajectory similarity calculation result, utilizing a DBSCAN algorithm to cluster trajectories; carrying out HMM model training; and selecting an appropriate HMM model from the plurality of HMM models according to the maximum similarity, and predicting an RSSI value, thereby judging whether to trigger switching. Compared with a traditional switchingstrategy, the received signal strength value of the base station can be predicted, so that the MN is helped to realize the accurate and timely switching triggering judgment, and further the call quality of the mobile user MN is improved.