In foreign countries, most sommeliers work in high-end restaurants/hotels/bars. But they are not limited to this field. The function of sommelier is to recommend suitable products to guests and provide professional services according to their knowledge and experience of world wines. Therefore, many sommeliers, especially sommeliers in China, work in more diverse places, and most of them are invited to serve as consultants to companies or wineries, such as helping companies plan banquets. Acquisition of wineries, etc. And invited some national star sommeliers to serve as referees of national competitions, such as China Food and Wine Matching Challenge or National Hotel Industry Vocational Skills Competition-sommelier Special Competition. It can be seen that professional sommeliers at home and abroad have no doubt about their authority in the catering industry and wine industry.