Catering is a branch of economy whose two main obligations are production and service. It is divided in two main directions: restaurant business and hospitality. The subject of this paper is restaurant business which inludes the obligations and tasks of the restaurant as an activity which produces and serves to the guests. The concept of this paper is explained in eight chapters leaded by the first subject of what is catering in general, what is it made of and how it is divided, on the further there is the history of catering development in the world and in Croatia and with that said, it is introducing us into the rest of the paper. On the next chapter, it is shortly explained what is the subject of organisation and how is restaurant business incorporated in the business of a hotel organisation. With that being said, it leads us to the main subject of this paper which is the restaurant business. There are quoted all sorts of objects that are taking part in restaurant business and all of their main subjects are described. Next chapter is about types of restaurant businesses and their functions, the staff that is employed in the kitchen and the staff whose duty is serving food and drinks. After that, comes the theme of the bill of fare and the menu, their meaning, their divison and the difference between them. On the further notice comes the theme of how is restaurant business going to work in the future, or how is the specific sort of an object going to adapt in the future changes. With that being said the entire first impression of a guest when he comes to an object, the whole atmosphere in there, and the surroundings are the key point where the guest decides if he wants to come back or not. The last chapter of this paper that concludes the whole theme is a subject that is a little bit unusual. The extraordinary situation is because the new virus appeared in our society. We all had to learn to adjust and to keep living our lives with it. As well as the rest of us, the catering objects had to learn to adjust and adapt so they could keep going with their businesses and keep making profits.