NOVELTY - Production of large-scale methanol gasoline comprises preheating methanol at 40-65 degrees C; adding 5-10% catalytic auxiliary agent to methanol; heating and vaporizing; modifying vaporized gas on ZSM-5 molecular sieve fixed bed in methanol to obtain modified methanol; synthesizing modified methanol, preheated base oil, and auxiliary agent on molecular sieve fixed bed; and condensing and cooling gas-liquid mixture at room temperature to obtain product methanol gasoline.    USE - Production of large-scale methanol gasoline.    ADVANTAGE - The process is environment friendly, energy saver, reduces cooling medium and heating medium, has simple and convenient process, and does not discharges wastes. It continuously produces methanol gasoline in standard way with improved quality and reduced cost.    DETAILED DESCRIPTION - Production of large-scale methanol gasoline comprises preheating methanol at 40-65 degrees C; adding 5-10% catalytic auxiliary agent to methanol; heating and vaporizing; modifying vaporized gas on ZSM-5 molecular sieve fixed bed in methanol to obtain modified methanol, in which catalytic auxiliary agent comprises (%) isobutylaldehyde (67), methyl vinyl ketone (11), and 2-octanol (22); synthesizing modified methanol, preheated base oil, and auxiliary agent on molecular sieve fixed bed to obtain gas-liquid mixture, in which preheating temperature of base oil is 30-45 degrees C and amount of synthesis auxiliary agent 5-10 mass% and composed of (%) zinc dialkyldithiophosphates (33), butylated hydroxytoluene (34), and polyisobutene amide isooctylester (33); and condensing and cooling gas-liquid mixture at room temperature to obtain product methanol gasoline. An INDEPENDENT CLAIM is included for vehicular large-scale methanol gasoline production device comprising heater, methanol modified molecular sieve catalytic reactor, measurement groove A, measurement groove B, methanol gasoline synthesis reactor, condenser, cooler, and cooling and receiving cylinder.    DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a process for producing large-scale methanol gasoline (Drawing includes non-English language text).