A possibility of La1-xSrxCoO3 perovskite film (0.1 ≤ x ≤ 0.6) synthesis from salt solutions on metal carriers by pyrolysis is shown. Thermal analysis of reaction salt systems is conducted. Temperature interval in which the assigned compositions are synthesized is ascertained on the base of studying the films obtained using x ray diffraction and electron microscopy methods. Dependence of coating surface maturing on the formation conditions is revealed therwith.