Phenomenology of the Higgs sector in supersymmetric standard model

Several topics related to phenomenology of the Higgs sector in the supersymmetric standard model are reviewed. The upper bound of the lightest Higgs mass in the minimal supersymmetric standard model as well as extended version of it is discussed and it is shown that an $e^+ e^-$ linear collider with $\sqrt{s}\sim300 - 500$ GeV can find at least one Higgs boson in these models. It is also pointed out that the heavy Higgs mass scale may be determined from measurements of the Higgs boson decay branching ratios even if we only discover the lightest Higgs boson at early stage of the linear collider experiment.