The recently published IPCC AR6 once again emphasized the importance of CH₄ mitigation in global warming abatement.CH₄ is one of the most important short-life GHGs.Since many countries committed to the new CO₂ emission reduction targets of carbon neutrality either by 2050 or before 2060, programs focusing on CH₄ emission reduction have been increasing, and consequently CH₄ emission reduction is becoming one of the key areas for national and global GHG mitigation and international collaboration.This paper presents CH₄ emission scenarios for China based on the energy transition with the carbon neutrality target, together with mitigation technology options in other non-energy activities, by applying the IPAC model.With the two scenarios used in the modeling analysis, it is found that, with the energy transition, there will be significant CH₄ emission reduction by 2050.The reason for this is the reduced use of fossil fuels in the transition, with 67% CH₄ emission reduction compared with that in 2015.Compared with other sectors, CH₄ emission reduction in energy sector has better synergy.If more CH₄ mitigation is required, then reduced demand for nature gas may be a contributor.By combining this with O₃ reduction, and since NO_<i>x is a precursor of O₃, by 2050 NO_<i>x emission will mainly originate from natural gas combustion in the energy transition.In the meantime, CH₄ emission mitigation from non-energy sectors also bears great potential.In the low-CH₄ emission scenario, CH₄ emission could be reduced by 14.94 Mt by 2050, with 58% reduction compared with 2015.