It is very important to fully understand the needs of customers and provide personalized and humanized services to customers when establishing customer database and recording customer data. Therefore, the hotel must create unique customer information. First of all, the hotel should start collecting customer data, track and record the entire process, and create a complete and accurate file of the hotel's regular guests. The so-called Whole Process Tracking refers to the entire process from the first contact of the customer through the receipt of the service to the return. All relevant customer information must be recorded. In addition, we should use computers to develop data technology, establish detailed and subtle customer demand files, and finally build customer information database. For example, calculate and archive the customer's birthday, household address, taste, favorite dishes, beverage preference, preferred welcome color, religious belief and other data, and send the customer a greeting card or email signed by the Director General, when the spring party or birthday of the customer and other special days, when customers patronize again, targeted personalized services are offered to surprise them and make them feel cared for.