After the discovery of the Top quark, high energy physics community took 17 years to find the Higgs boson in 2012. Since then, all Standard Model predicted fundamental particles are confirmed in experiments. In the next 15 years, the Large Hadron Collider (LHC) will focus on precision measurements of the Higgs boson properties. The precise theory predictions as well as the measurements of Higgs boson transverse momentum distributions, decay width and trilinear couplings will be crucial for searching beyond Standard Model singles, determining the stability of our universe and inspiring the next generation colliders. In this seminar, I will first summarise the state-of-the-art theory precisions of each Higgs boson production channels at the LHC. Then I will analyse the challenges and opportunities for precision Higgs phenomenology in the next 15 years till the end of High-Luminosity-LHC period.