The utility model relates to a secret file pouch, the one -way ventilation valve who sets up is gone up to the sealing flap and the bag body including the bag body, bag body top sack department, sealing flap's free end passes through electron trick lock and bag body connected, the internal portion of bag is in the position at the bag end and is equipped with the clip, the bag body is inside and outside bilayer structure, and its inlayer adopts soft leather layer, the outer nanometer fiber layer that adopts to be equipped with between soft leather layer and nanometer fiber layer and violently indulge crisscross strengthening band, the outer surfaces coated of nanometer fiber layer has fireproof paint, and soft leather in situ surfaces coated has the waterproof coating. The utility model has the advantages of reasonable design, convenient to use, the security is high, has splendid waterproof fireproof nature, has effectively ensured to store in its inside document's safety. Simultaneously, the bag body can guarantee through one -way ventilation valve that inside and outside air is unblocked, avoids the circulation of air of the internal portion of bag not smooth, and document wets impairedly.