The invention discloses a refrigerator. The refrigerator comprises a refrigerator body and a plurality of compartments arranged inside the refrigerator body. The refrigerator body is provided with a rear wall and two side walls connected with the rear wall. The multiple compartments comprise at least one first compartment and a second compartment located on the first compartment. The operating temperature of the first compartment is lower than the operating temperature of the second compartment. The refrigerator is further provided with air channels located between the compartments and the side walls, an evaporator and a fan, wherein the evaporator and the fan are located between the first compartments and the rear wall. The evaporator is arranged in the width direction of the refrigerator body. The evaporator comprises a main body part located in the middle and elbow parts located in the positions, close to the two side walls, of the two sides. The air channels comprise air outlets formed in the upper portions of all the compartments and return air inlets formed in the lower ends of all the compartments. A flow guiding device is arranged between the return air inlet of the second compartment and the elbow parts of the evaporator. The flow guiding device guides the air flow flowed back to the evaporator from the second compartment to only pass through the main body part without passing the elbow parts. According to the arrangement, a big ice block is prevented from being formed in the elbows of the evaporator, and the use ratio of the evaporator is increased.