Since the 5G mobile technology is coming, my proposal is to transform the traditional hotel service mode into the smart hotel service system in order to improve the communication between the foreigners and the hotel staff. Smart hotel is a solution to build a quiet environment in the hotel to advance the experience by using the new technology which is able to save time, efficiency and cost. The first test is in the Hyatt hotel to build the smart hotel system for the users. Nowadays, hotel apps already exist without the consistency. The opportunity I created is to increase the hotel service in a totally new way with speaking any words, which means created the complete silent, peaceful and comfortable environment for all the users in the hotel. An innovation of the hotel service of this project is to transform the traditional one to the new concept: Smart hotel without speaking a word to someone in the hotel.