China is not a good choice for travelers with disabilities. If you do choose to come here, travel with a specialist group (although such tours to China are rare) or with someone fully familiar with your particular needs. The Chinese hide people with disabilities, who are rarely seen unless reduced to begging, when they may even be subjected to taunting (although this won't happen to foreigners).
China is difficult for those with limited mobility. The sidewalks are very uneven, and public buildings, sights, and hotels almost always have stairs with no alternative ramps. In theory, some major hotels in the largest cities have wheelchair accessible rooms, but rarely are they properly executed. Metro stations do not have lifts, and any escalators usually run up only.