Abstract: A portable and mobile toilet includes a case for removably placing a bowl therein, and four elongate walls and an upper cover collapsibly combined together. The case, the bowl and the upper cover have an outer layer and an inner layer to form an inner hollow cavity for a gas to fill therein when the toilet is to be combined together for use. The upper cover is placed on the four walls when in use, and is closed on the case when collapsed. The four walls are made of a flexible opaque material, able to be rolled up and stored in the case when collapsed. Ropes and nails are provided to secure the upper cover and the case stably to keep the toilet secured on the ground.