Portable compressed squatting pan and its use method, comprising compressible plastic, four stretchable metal sticks, a plurality of stool outer bags and a plurality of urine bags with water-absorbing agents, each of the stool outer bags is placed with absorbent and a A poop bag with a water-absorbing agent; wherein, the compressible plastic is expanded into a square structure with an open top surface, and columnar holes are provided along the connecting lines of the two adjacent sides of the square structure; four stretchable metal rods After being stretched, they are respectively inserted into the four columnar holes to fix the shape of the compressible plastic; both the urine bag and the stool bag containing the water-absorbing agent can be set in the square structure. After urinating, the urinal bag is tied up, and after defecation, the tied up stool bag containing toilet paper and sterile paper towels are put into the stool outer bag containing adsorbent and sealed. Bagged urine and urine can be thrown away in the nearest trash can or taken home for disposal. The squatting pan is small in size, light in weight, convenient to carry, easy to use, does not pollute the environment, and solves the problem of difficulty in going out to go to the toilet.