Template　method,　which　is　one　of　the　commonly　used　methods　for　establishing　a　fuzzy　pattern　database,　plays　an　important　role　in　fuzzy　pattern　recognition.　In　this　paper　an　improved　template　method　is　proposed,　which　is　called　FPLS　method.　It　is　better　than　traditional　template　as　it　is　used　for　establishing　the　fuzzy　pattern　recognition　data　base.　At　the　same　time　in　combination　with　the　problems　existed　in　Tarim　Oilfield,　a　model,　of　which　pyrolysis　parameters　are　used　as　characteristic　indexes　for　oil-gas　recognition,　is　proposed　for　effective　improved　the　parameters.