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There are more than 60 coffee producing countries in the world, most of which are located in the tropics and subtropics between the Tropic of Cancer (23 °26 'north and south). This coffee growing area is called "coffee belt (Coffee Belt)" or "coffee area (Coffee Zone)". The annual average temperature of the coffee belt is above 20 ℃, because the coffee tree is a tropical plant and cannot grow normally if the temperature is below 20 ℃.

Coffee growing areas are concentrated in North Africa, Central and South America, Southeast Asia and northern Oceania. There are about 40 species of coffee plants, but the only ones that can produce coffee beans of commercial value are Arabica, Robusta and Liberian. these three species are called the "three native species of coffee".

It is generally believed that the coffee produced in the highlands is of better quality. Coffee-producing countries in Central America will use "elevation" as the grading standard because of the mountains that cross the middle of the continent. For example, SHB in Guatemala (abbreviated from the prefix Strictly Hard Bean), the highest of the seven grades is called SHB, indicating that its producing area is about 1370 meters above sea level.

Arabica coffee beans are mainly grown in South America (except parts of Argentina and Brazil), Central America, Africa (Kenya, Ethiopia and other places, mainly East African countries), Asia (including parts of Yemen, India and Papua New Guinea). The main producers of Robusta coffee beans are Indonesia, Vietnam and West African countries centered on C ô te d'Ivoire, Algeria and Angola.