Hi, is it possible to do the trekking from Qiaotou at early morning?

Yes, you can go this in the same day. From Qiaotou, it's a famous and popular trekking route. It takes around 7 hours if you choose to walk from the mountain path and around 5 hours to walk from the high way. After arriving, you can contact the hotel staff and ask them to book the transportation to Shangri-La. If there is no direct coach at that time, you need to hire a private car or stay at the hotel, start off in the next early morning. Good luck!