PURPOSE: To provide an X-ray tube target having a great strength and is suitable for a large-capacity X-ray tube of high speed rotation by using a ceramic member having a high thermal conductivity as a base material so as to secure the strength of the target and coating the surface of the base material with tungsten or its alloy.

CONSTITUTION: A disk-like base plate 1 is prepared from a ceramic member having a high thermal conductivity. The slant outer-peripheral area of the upper surface of the base plate 1, or a focal orbital surface 11, is coated with tungsten or its alloy such as a rhenium-tungsten alloy by the CVD method or the like to form a coating layer 2. Since such a base plate 1 made of a ceramic member is an insulating member, it is necessary to interpose an electrically connecting means between the coating layer 2 of the focal orbital surface 11 and the attachment hole 12 of a rotor in order to introduce electrons entering into the target toward the rotor. For the purpose of satisfying such a necessity, a coating layer 3 made of a heat-resistant metal or alloy is provided between the focal orbital surface 11 formed on the upper surface 13 of the base plate 1 and the attachment hole 12 of the rotor through CVD, vapordeposition or similar method. By thus using a ceramic disk plate having a good thermal conductivity as a base plate, the strength of the target can be increased without increasing its weight.