Abstract: The Higgs boson was discovered in 2012, which marked a new era of particle physics. This particle plays a key role in the Standard Model of particle physics, as it is expected to bring masses to elemental particles via the symmetry breaking mechanism, have salient connections with the quantum vacuum, and be indispensable in the evolution of very early Universe. At the 10th anniversary of the discovery of the Higgs boson, this paper unveils the mystery of the Higgs boson from the perspectives of science outreach, discussing about theoretical background, characteristics of the particle, experimental detection, as well as current status and outlook of Higgs boson physics.