Abstract: This invention relates to a soybean protein film which contain air bubbles in film and is made from soybean protein solution or suspension which contains air bubbles, and is dried by heating.The density of said protein film thus manufactured is 0.1-0.8 g/cm.sup.3.Said soybean protein film containing air bubbles has better adhesive properties between said soybean protein film each other or with other food.Said soybean protein film containing air bubbles gives better toothfeeling, better solubility in the mouth and easy to eat and easy to use, and so can be used wide range of foods.