Latest results on Higgs boson $\to\gamma\gamma$ in the CMS experiment

The photonic decay of the Higgs boson is one of the most prominent decay modes for the observation and measurement of the Higgs boson properties, although its branching fraction is as low as 0.002. The CMS collaboration has analyzed 35.9fb$^{-1}$ of proton-proton collision data delivered by the LHC at a center of mass energy of 13~TeV. The inclusive results of the search in different Higgs boson production channels and the differential fiducial cross section measurement results are presented in this talk.