Search for Standard Model Higgs using dimuon final state with ATLAS at LHC

Observation and measurement of the SM H$\mu\mu$ is important for the Yukawa couplings of the Higgs boson, which is a new type of coupling (regarded as a new force) in particle physics. The SM branching fraction for the H$\rightarrow$$\mu\mu$ ?decays is 2.2$\times$$10^{-4}$ for a Higgs boson mass of 125 GeV. This talk will present the prospects of search sensitivity for this decay mode with the ATLAS detector at the LHC Run 2.