NOVELTY - A methanol fuel modifier comprises organic peroxide, ethanolamine and ammonia water at ratio of 1:0.5:1.1.    USE - A methanol fuel modifier for producing reinforced methanol liquid fuel useful for ignition of internal-combustion engine (claimed).    ADVANTAGE - The method has simple operation, and no wastes; and is safety in use and transportation.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a modified and reinforced methanol liquid fuel comprising (wt.%) low carbon alcohols (43.3-80), methanol fuel modifier (2-7.2), petroleum ether (6-8), ammonia water (3-4.5), aliphatic alcohol (2-6, preferably 4-6), carboxyl fatty acid (4-6) and methanol fuel reinforcer;    (2) a methanol fuel reinforcer comprising dicyclopentadienyl iron, aromatic hydrocarbons, vegetable oil or solvent oil and aniline at ratio of 1:6-10:6-20:1    (3) a process of producing methanol fuel modifier by (A) carrying out exothermic reaction of organic peroxide (1 pt.wt.) and ethanolamine (0.5 pts.wt.), stirring at 90-100 degrees C, and reacting with ammonia water (1.1 pts.wt.) to obtain methanol fuel modifier, (B) reacting vegetable oil (1 pt.wt.), aliphatic alcohol (2 pts.wt.) and carboxyl fatty acid (1.5-2 pts.wt.), and detecting pH at 7-7.5, and (C) clarifying with diester phthalate (1 pt.wt.); and    (4) a process of producing reinforced methanol liquid fuel by (A) reacting low carbon alcohols and methanol fuel modifier, and stirring for turbidity dissolution, clearing mixture with hydroxy ester, emulsifying with ammonia water, and adding higher aliphatic alcohol to obtain clear and transparent solution, (B) generating oil with carboxyl fatty acid at pH of 8-9, emulsifying with methanol fuel reinforcer, and adding higher aliphatic alcohol to clarify solution, (C) generating second oil with carboxyl fatty acid, and stirring to obtain clear, transparent and glossy solution at pH 7-7.5, and (D) adding hydroxy ester, and integrating liquid oil for not less than 30 minutes.