There are provided a method of manufacturing a ceramic sintered body. A method of manufacturing a ceramic sintered body according to one aspect of the invention may include: preparing at least one ceramic sheet having first ceramic particles and glass particles; preparing at least one constraining sheet having second ceramic particles having a smaller particle size than the glass particles and the first ceramic particles; forming a ceramic laminate by alternating the ceramic sheet and the constraining sheet while the ceramic sheet and the constraining sheet are in contact with each other; and sintering the ceramic laminate so that components, which do not react with the first ceramic particles, from the glass particle are moved into the constraining sheet to sinter the constraining sheet when the ceramic sheet is sintered.