Abstract: A sealing bag is formed by a nylon film and a PE film added with chemical static solution is formed as a double layer compound material. Thereby, the edges of the double layer compound material can be sealed. The opening of the sealing bag contains a seal-retaining element. The area near the bottom of the bag is formed with at least one stop portion having a predetermined length and at least one vent. At least one gap channel is formed between the stop portion and the edge of the bag. An air channel is formed between the stop portion and the vent. The vent and the air channel are alternatively arranged.