  The 750 GeV diphoton excess reported by ATLAS and CMS indicates the presence
of several pairs of the vector-like matter multiplets around TeV scale. If that
is the case, radiative corrections from the $SU(3)$ gauge interaction
significantly change from those of MSSM, and the infrared-free nature of the
gauge interaction leads to characteristic SUSY mass spectra: a ratio of a
squark mass to the gluino mass, and scalar trilinear couplings are enhanced at
the low-energy scale. Consequently, even in gaugino mediation models, the Higgs
boson mass of 125 GeV is explained with the fairly light gluino of 2-3 TeV,
which can be accessible at the LHC.
