The invention discloses a ground cluster target tracking method which comprises the steps that: a cluster is generated, and a geometric center tracking method of the cluster is adopted to process; the measured information and cluster targets are subject to correlation treatment; whether the number of the cluster targets is increased is judged; if the target number is increased, a batch processingis performed, and the geometric center of the original cluster is modified; if the target number is not increased, whether the cluster satisfies a separation condition is continued to be judged; if the cluster satisfies the separation condition, the separation processing is performed, and the separated targets are used to carry out the tracking processing; finally, the geometric center tracking method is adopted to maintain the tracking processing to the clusters which are batched and do not accord with the separation condition; in addition, the cluster subject to the separation processing can be generated into a new cluster once again after the multi-target tracking processing. The method has the advantages that: the method solves the disadvantage in the ground cluster (or formation) tracking processing, can integrate numerous targets into a whole to track, and effectively reduce the complexity of algorithm and resources of ground moving target indication radar.