The invention discloses an automatic door opening device and a refrigerator with the device. The automatic door opening device comprises a base, a drive source member, a transmission body and two pushing pieces. Each pushing piece comprises a pushing rod and a first elastic component. The transmission body comprises two mechanical clutch gear sets. Each mechanical clutch gear set comprises a mechanical mother gear, a mechanical son gear and a mechanical clutch piece, wherein at an initial state, the mechanical mother gear and the mechanical clutch piece are mutually engaged, and the mechanical clutch piece is separated from the mechanical son gear; in the opening process of a door body, the mechanical mother gear and the mechanical clutch piece are partially connected in a clamped manner, the mechanical clutch piece and the mechanical son gear are mutually engaged, and the mechanical mother gear drives the mechanical son gear to be in a transmission state; and after the door body is opened completely, the mechanical clutch gear set restores to the initial connection state, a power-driven mother gear is in a static state, and the pushing rod is made to move into the base and drive the mechanical son gear to rotate reversely. By means of the transmission body, the noise indirectly produced for the drive source member in the reset process of the pushing pieces can be avoided.