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Dynamics of the Au + H2 reaction are studied using time-dependent wave packet (TDWP) and quasi-classical trajectory (QCT) methods based on a new potential energy surface [Int.J.Quantum Chem.118 e25493 (2018)].The dynamic properties such as reaction probability,integral cross section,differential cross section and the distribution of product are studied at state-to-state level of theory.Furthermore,the present results are compared with the theoretical studies available.The results indicate that the complex-forming reaction mechanism is dominated in the reaction in the low collision energy region and the abstract reaction mechanism plays a dominant role at high collision energies.Different from previous theoretical calculations,the side-ways scattering signals are found in the present work and become more and more apparent with increasing collision energy.