The main church of the monastery was built in 1753 under the abbot Matfei (Lukashev), who requested permission for construction from the Moscow Spiritual Consistory. It is the largest two-story building. The first floor housed a church dedicated to the great martyr and victorious George, while the second floor contained a two-altar church in honor of St. Nicholas and the righteous Prince Michael of Chernigov with his boyar Theodore. Under Abbot Joseph (Lazarev) (1790-1803), the improvement of the building continued. In 1758, the cast-iron floors were replaced with brick, and the steps to the upper church were remodeled. In 1852, the dome was covered with gold leaf, and in 1872, an internal renovation was carried out under a contract with the Kursk master Afanasy Leont. The wall paintings were renewed, and the arches of the upper and lower churches were finished to resemble marble. The architecture of the church combines elements of Russian and Ukrainian Baroque. During the Soviet period, after the monastery was closed, the church was partially destroyed and disfigured. After the monastery was returned to the Kursk diocese, the restoration of the Nicholas Cathedral began. First, the lower church was opened, consecrated in honor of the miraculous icon of the Mother of God "Znamenie" of Kursk Root, where services were held. In 1999, after restoration, the upper church of the cathedral was opened, consecrated in honor of St. Nicholas, Archbishop of Myra in Lycia.