YBCO thin film was prepared by the spin-coating method with metal-organic precursors. The precursors were synthesized by reacting metal acetates with 2-ethylhexanic acid or by reacting metal halides with ammonium 2-ethylhexanate directly. After proper heat treatments, YBCO film with T(c, onset) = 80 K and T(c, zero) = 77 K was obtained. SEM studies of a sample prepared at 990-degrees-C showed the presence of CuO and Ba2YCuO5 (211 phase). This suggested the transient presence of a liquid phase which had been observed in preparing YBCO bulk material by the melt-texture method before the formation of YBCO phase. Furthermore, many voids were observed in the as-obtained film. These might be the origin of the relatively low T(c,zero) temperature.