Vvedenska church is a masterpiece of the architectural style, which was built as refectory without pillars. In fact, there is one of the oldest monuments dating back to the 17th century. Vvedenska Church consists of a dining room, the auxiliary rooms for food preparation and the church. The dining room, the hall are arranged in one line, which is why the structure is a one-stored building but on the scheme it looks like it is a rectangle 37.5 m long, 10 m in the narrowest part and it’s width is 17.5 m.
The peculiarity is that there are 2 baths in the church not one as in most cases. The quadruple shaped dome turns into an octal, which in its turn goes to a conical narrowing dome. In the construction of the interior space techniques which come from wooden architecture were used. Sometime after the church was built, Hetman Ivan Mazepa presented it an iconostasis decorated with his coat of arms. It was a four-tiered Baroque iconostasis, the central part of which was starting from the second tier. The icons on it were arranged along curved lines that were rising slightly to the center of an iconostasis. Unfortunately, the iconostasis was destroyed by the Communists in the 1930s.
The iconostasis that is now in Vvedenska church was made in 1988-89 before the opening of the theological school in 1989. As well as Vvedenska church was belonged to the theological school its students had their lessons and exams here. Still at the same time it is a refectory church.