The invention discloses a garbage bin garbage bag sending-out and sealing device which comprises a smart bin cover, an outer bin body and a garbage bag. The outer bin body is provided with a drawer type inner bin body, the inner bin body is provided with a sealing mechanism, the sealing mechanism comprises a hot melt device seat, a hot melt seat, a pressing plate, a hot melt switch and an eccentric type rotating decorative cover. The hot melt seat and the pressing plate are fixed on the two sides of the hot melt device seat and form fusing grooves. Electric heating elements are correspondinglyarranged on the hot melt seat and the pressing plate and on the two sides of the fusing grooves, the inner bin body is provided with V-shaped straight notches matched with the fusing grooves, the hotmelt switch is fixed on the inner bin body, the eccentric type rotating decorative cover is arranged on the inner bin body and is provided with a switch pressing block matched with the hot melt switch, and the eccentric type rotating decorative cover controls the electric heating elements to heat a hot melting sealing opening of the garbage bag. After the above structure is adopted, the garbage bin garbage bag sending-out and sealing device has the advantages of being simple and reasonable in structure, convenient to operate and use, good in closing and sealing quality, low in production costand the like.