An ingredient feeding, cooking and heating system comprises a cooking cavity (100) formed by a hollow shell in a sealed manner and main cooking equipment arranged in the cooking cavity (100), the main cooking equipment comprises a wok device and an ingredient feeding device (2), a cooking area for accommodating the wok device is arranged at a middle portion of the interior of the cooking cavity (100), a feeding area for accommodating the ingredient feeding device (2) is arranged at an upper portion of the interior of the cooking cavity (100) and above the cooking area; the wok device comprises a wok (1), a furnace body device (13) adapted for bearing and heating the wok (1), and a wok rotating device (14) adapted for controlling the wok (1) to rotate. A full-closed cooking machine comprises the ingredient feeding, cooking and heating system.