  I review proton decay in the SUSY SU(5) GUTs assuming the mini-split SUSY
breaking model. In the mini-split SUSY breaking model, the squark and slepton
masses are O(10^{(2-3)}) TeV while the gaugino masses are O(1) TeV. As the
result, even the minimal SUSY SU(5) GUT is still viable in the model. We
present the motivation of the mini-split SUSY model and discuss the future
prospects of proton decay searches in the SUSY SU(5) GUTs.
