Acetate was dissolved in propionic acid solution to prepare all fluorine-free GdBCO precursor solution. Afterwards, it is explored that the epitaxial growth of GdBa2Cu3O7-x(GdBCO) superconducting thin films on LaAlO3 (LAO)(100) single crystal substrates using all-fluoride-free chemical solution deposition (CSD) method. The phases, orientation, morphology and superconducting property of the films synthesized at different annealing temperatures were studied. It is observed that GdBCO films manufactured at 817 ℃ have excellent biaxial orientations, and the Tc of the film annealed at 817 ℃ is 92.5 K, its critical current density (Jc) reaches 1.33 MA/cm2 at 77 K and self-magnetic field.