Generally speaking, it is OK to hike during winter, but you should prepare well and be careful if it covered by snow. Pay attention to the weather of Huangshan scenic spot. It it is bad, better not to hike. Both the two Hotels in Huangshan offer bunk bed. You can choose either one to stay.

Thanks David for the info.Unfortunately my travel buddy not preparing for such a cold weather up in the mountain, am very keen but don't feel good doing winter trip solo. still in considering..