A Higgs boson was discovered last summer, and its mass turned out to be 125 GeV. We discuss a mechanism to produce this observed value for the mass in the framework of supersymmetry. We consider a model where a UV complete SUSY Yang-Mills theory with a certain flavor produces composite Higgs superfields below the confinement scale. In order to realize the first order phase transition of electroweakgauge symmetry, which is required for successful electroweak baryogenesis, the confinement scale turns out to be around 10 TeV or higher, below which an extended supersymmetric Higgs sector with the mass of the SM like Higgs boson to be 125 GeV is predicted as a low energy effective theory. We also discuss the collider phenomenology of this model at the LHC and the International Linear Collider.