With synthetical application of light microscope,scan electron microscope and confocal microscopy laser Raman spectrum,a survey has been conducted to the wall-painting survivals in Miaoyin temple,Gan’en temple and Leitan temple(the temple with the layout of Chinese character of"雷")which were in history under jurisdiction of Chieftain Lu(Lu Tusi)of Liancheng,Yongdeng county of Gansu province,resulting in the confirmation that the murals from Gan’en temple and Leitan temple generally maintain the style and content of the early Ming dynasty;the paintings from the temples were not all created by the same artisans by examining the painting stuff and workmanship applied for the main murals in Gan’en temple that are strongly distinctive from what for others;the frescos in Wansui Dian(Hall)of Miaoyin temple are found to have been adapted and repainted in its later construction period;the creation of the main paintings along the external corridor of Wansui Dian(Hall)were started prior to the completion of those inside the Hall,and lastly,the paintings in Tar Lamasery of Miaoyin temple were drawn in late 19 th century.