The invention discloses an anti-rust and computer-based pastry baking device. The device comprises a shell, a baking device body, a power supply socket and a control operation device, wherein the shell comprises an outer shell body, an inner shell body, a heat insulation layer, a heat insulation glass layer, a handle and a glass door; the baking device body comprises a heating resistance wire set, a tray, a motor and an output gear, the tray comprises a tray frame, a rotating disc and a transmission gear, and a power plug can rotate and is located at one corner of the whole machine; the control operation device comprises a camera, a display screen, keys, a heat radiator and a computer. The intelligentization and simplification of pastry baking are achieved, the device enables more people to make delicious pastries by the aid of the computer, and the device is suitable for home use.