The invention relates to a rugged assault boat and a manufacturing method thereof. A boat body of the rugged assault boat comprises a boat bottom and a float bowl, wherein the boat body is formed by ultra-high molecular weight polyethylene bulletproof fabric with a gluing surface in a splicing mode, and small packing bags of various raw materials needed by foaming are evenly installed in the float bowl at random. The manufacturing method of the rugged assault boat comprises the following steps of modifying the ultra-high molecular weight polyethylene bulletproof fabric, gluing on the surface, preparing the boat body, using and the like. The rugged assault boat has bulletproof performance, and can not be easily punched by bullets in a battle. Foams are filled inside the float bowl of the manufactured rugged assault boat, the foams are solidified to form a foam whole, the foams are light in weight, and even if ultrahigh molecular weight polyethylene (UHMWPE) materials are punched due to the fact that the same position is shot by a plurality of bullets in the process of use, the phenomenon that the bullets punch the float bowl to cause air leakage in the boat body and even boat sinking is avoided. The boat body can be folded, and is small in size and easy to carry. The foams are rapid in solidification and can be used at any time.