Ethyl 7-chloro-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate was synthesized by the Gould-Jacobs reaction using aluminium metal as the catalyst under microwave-assisted. The optimum reaction conditions were obtained by experiment program as follows: the reaction temperature was 80 ℃, and the reaction time was 20 min, with Al being used catalyst. The overall product yield was 94.2 %. The structure of product was determined by melting point measurements and NMR spectrometry that were applied to verify the target product.