The utility model discloses a storehouse face heat accumulation and heat preservation module for cold area roller compacted concrete gravity dam, including last box body, lower box body and freeze proof durable elasticity poly -bag, go up the box body bottom surface and do not have the board, be provided with a plurality of bayonet bolts that sweep away along last box body side frame bottom surface, lower box body and last box body phase -match, the box body top surface does not have the board down, box body side frame top surface is provided with a plurality ofly towards last and socket joint formula nut hole that bayonet bolt matches under along, socket joint formula nut hole bulges in box body side frame top surface, go up the box body and insert socket joint formula nut hole formation an organic whole with lower box body through bayonet bolt, freeze proof durable elasticity poly -bag upper band has exhaust nozzle and heat -seal mouth, freeze proof durable elasticity poly -bag cover is in the outside of assembling integrative last box body under and, it is sealed behind the heat -seal mouth, come out through the air pump drainage of exhaust nozzle in with freeze proof durable elasticity poly -bag, form inferior vacuum state. The utility model discloses the effectual coordinating and unifying problem of solving the heat retaining operability of concrete bin face, economic nature and high efficiency.