The subject of the research is hand-drawn ornaments of Kasımlar Village Mosque in The District of Gölpazari, Bilecik Province. The building was taken under preservation after the restoration completed by Bursa Foundations Regional Directorate in 2019. Along with the writing of Mashallah, it reads H 1190 / M 1776, the date of the building, in the inscription on the northern facade of the mosque which is not known by whom it was ordered. The hand-drawn ornaments on the gallery floor on the exterior, in the altar, in the pulpit, on the lower and upper windows, between the walls, around the revzen, between the ceilings and arches of the women's mahfil, and on the wooden-bellied ceiling reflect the 18th-century features. On the Qibla wall, paintings of Mecca, city views, and a mosque were made in miniature style. In hand-drawn ornaments, it is often seen that flower bundles in ewers painted with red, blue, green and redwood colored root dyes, tree paintings, four caliphs and Allah Muhammad calligraphy in round medallions, bouquets of tulips, roses and hyacinths made in palmet-rumi and naturalist style, motifs of lanterns, as well as medallions created with C and S folds which are frequently used in Baroque style, are painted. With the motifs that entered with western influence in the 18th century in addition to the paintings seen on the walls and made in miniature technique, the Mosque of Kasımlar Village in Bilecik proves that the decoration program applied in the capital Istanbul was loved and repeated in the provinces.