Plan to go to Zhangye Danxia Landform next year, may i know which month is the best to be there?

June to September is the best time to visit there.

Thanks Kate.
Is there any accomodation and transportation there, please recommend.
Also recommend us some scenic places in this priovince because we are planing to spend about 15 days there.
Best regards,

I remember there is a farmer house near the entrance of Danxia Landform scenic area, named Qiao Jia Da Yuan. You can live and have meals there and the price is reasonable.

Apart from the landform, you can also visit the Wooden Tower of Sui Dynasty, Shandan Buddha Temple and Shandan Horse Farm, and Giant Buddha Temple in Zhangye. Besides, Mogao Caves and Jiayuguan Great Wall are must-see scenic spots in this provinces. Qilianshan Mountain and Crescent Moon Bay there also attract many visitors.

Thank you very much Kate, for the valuable information.
Do you have the Qiao Jia Da Yuan contact?
Best regards
HK Sitoe

Sorry, I have no their contact. Actually, you can go there to check in directly.

Thanks to Kate for the earlier info
We about 10 persons planning to visit GS scenic places in 12 days and there's some inquiry :-
1) Please recomend us the scenic spot in GS (excluding Landform in Zhangye).
2) Do we have enough time to visit all the scenic spot in 12 days?
3) Is there any reliable tour guide to recomend?
4) We are doing in a budget way.
Please advise and thank you,
Best regards,
HK Sitoe

In GS, Dunhuan cannot be missed. Besides, the Jiayuguan Pass, the Mogao Caves, Labrang Monastery, Maiji Moutain, Qilian Mountain, the Qiyi Glacier, Kongtong Mountain, GS Provincial Museum and so on. The ones I listed are famous one.
I think 12 days are enough to cover all these.
The attractions are located in different places in that province, so it is hard to find the tour guide to go together with you all along. I also suggested to travel on your own, because it is very cheap and you can plan on your own time.
The trains and local public transportation fee is not very high, so you will not cost much for traveling there.