The invention relates to a sealing device, in particular to a pressing type potato chip packaging and sealing device. According to the pressing type potato chip packaging and sealing device, the working efficiency is improved, the production cost is reduced, and food packaging bags are sealed. The pressing type potato chip packaging and sealing device comprises a fixing plate, a supporting rod, acollecting frame, a pressing mechanism, a reciprocating mechanism and the like. The supporting rod is arranged at the top of the left side of the fixing plate, the collecting frame is arranged at thetop of the right side of the fixing plate, the pressing mechanism is arranged in the middle of the top of the fixing plate, and the reciprocating mechanism is arranged at the top of the rear side of the fixing plate. According to the pressing type potato chip packaging and sealing device, the food packaging bags needing to be sealed are placed in the pressing mechanism, the reciprocating mechanismis started, the reciprocating mechanism drives the pressing mechanism to move to seal the food packaging bags, and after sealing is completed, a user pushes the sealed food packaging bags into the collecting frame, so that the sealing effect is achieved.