The present invention discloses a confection process of synthesized methanol diesel. The process mainly includes the following steps: (1) the confection of A mixture: naphthenic acid is added with methanol and amine water, stirred for 10 to 20 minutes and sheared by a high-speed shearing machine for 10 minutes so as to obtain the brownish red liquid A mixture; (2) the confection of B mixture: acetone, 8- hydroxyquinoline, positive ethane, polyethylene menthanone, isooctyl ester nitrate and ethanol amine are directly mixed and added with an appropriate amount of diesel or coal oil as the auxiliary agent, thus obtaining the B mixture after even stirring; (3) the confection of C mixture: ferrocene, polyisobutylene and polyethylene-ester acid ethane are directly mixed and added with an appropriate amount of diesel or coal oil as the auxiliary agent, thus obtaining the C mixture after even stirring; (4) the A mixture is added with water and fully stirred, then the B mixture, the diesel and the C mixture are fully stirred after ultrasonic grinding and oil shearing by the high-speed shearing machine for more than ten minutes and finally the confection is completed after several minutes of oil shearing by the high-speed shearing machine. The synthesized methanol diesel prepared by the process has the beneficial technical effects of energy saving, environmental protection, no corrosion, wide application range, stable quality, simple production, etc., which is worth promoting.