Sealing gasket for heat exchange plate and heat exchanger

The invention provides a sealing gasket for a heat exchange plate and a heat exchanger, a sealing groove is formed in the heat exchange plate, one side of the sealing groove is a pressed side making contact with heat exchange fluid, the other side of the sealing groove is a non-pressed side not making contact with the heat exchange fluid, first ridges and first valleys are alternately arranged on the portion, outside the non-pressed side, of the heat exchange plate, and the sealing gasket comprises a base body part of an integrated structure, the sealing ring is matched with the sealing groove; the compensation part is of an integrated structure and is arranged on the base body part; wherein the cross-sectional area of the compensation part between the cross-sectional center line of the base part and the non-compression side is a first cross-sectional area, the first cross-sectional area of the compensation part close to the first valley is a first area, the first cross-sectional area of the compensation part