The present invention relates to a multi-purpose bag, and more particularly, to easily fold and carry, can be well set up in the form of a box when the body is unfolded, and relates to a multi-use bag that is easy to use because it can be extended. According to the multipurpose bag of the present invention, since the support supports the inside of the front and rear, the shape of the bag is maintained as it is, and the upper and lower guides of the metal are formed so that the support can be supported at the lower and upper edges of the body. As the support is not folded, it is not crushed in a plane, and the weight of the support can be sustained even if several layers are stacked, so that space utilization is good and contents protection is excellent.
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