You can learn catering management in the following ways:

1. Online learning: There are many online courses that can help you learn catering management, such as Coursera, Udemy, edX and so on. These courses allow you to study freely at home or anywhere.

2. catering management books: there are many books about catering management, such as catering management, catering service and management, etc. These books can help you understand all aspects of catering management in depth.

3. Catering management training: Many institutions provide catering management training, such as China Catering Industry Vocational Training Center and China Cuisine Association. These institutions can provide professional training and guidance.