Air-tight ceramic container

A method of manufacturing an air-tight ceramic container, comprising the steps of:

• coating an active metal consisting of Li and/or Zr on an opening end face of a ceramic tubular member in tight contact therewith by means of an organic adhesive in an amount of 0.1 to 10 mg/cm.sup.2, thereby forming an active metal layer which is not reacted with the ceramic member;
• placing a brazing filler metal on said active metal layer;
• placing a metal cover member for shielding an opening portion of said ceramic tubular member so that a peripheral portion end face of said metal cover is in contact with said brazing filler metal;
• melting said brazing filler metal by heating, thereby simultaneously reacting the active metal layer with the ceramic base to form a metal-ceramic bond and brazing said metal cover thereto.