The invention provides a continuous-type sponge foaming device. The continuous-type sponge foaming device comprises a charging mechanism, a conveying mechanism, a forming mechanism, a cutting mechanism and a containing mechanism. The charging mechanism comprises a discharging pipe. A main material inlet pipe is arranged on the side wall of the discharging pipe, and an auxiliary material inlet pipe is arranged at the tail end of the discharging pipe. Stirring blades are arranged inside the discharging pipe. A nozzle is arranged at the head end of the discharging pipe. The conveying mechanism comprises a conveying table, and a set of wheel rollers are arranged in the conveying table. The forming mechanism comprises a bearing ring belt, and a lower release paper roller is arranged at the outer side of the bearing ring belt. A compression ring belt is arranged above the bearing ring belt and is parallel to the bearing ring belt. An upper release paper roller is arranged at the outer side of the compression ring belt. Upper release paper in the upper release paper roller is arranged on the lower surface of the compression ring belt. The nozzle points to the gap between the upper release paper and lower release paper. The conveying table is provided with a power motor, and the power motor is connected with a rotating shaft of the bearing ring belt and the compression ring belt. The power motor is used for driving the bearing ring belt and the compression ring belt to operate, and foaming raw materials achieve continuous-type sponge foaming between the bearing ring belt and the compression ring belt.