The invention discloses an internal surface metallization hollow-core ceramic insulator, hollow-core metallization equipment and method, and can solve the problem that the hole wall metallization of the hollow-core ceramic insulator is non-uniform. The hollow-core metallization equipment comprises a sucking pump, a bleed-off passage, a supporting barrel and a fixture. The hollow-core ceramic insulator metallization method comprises the following steps: preparing a satisfactory tungsten sizing agent; mounting the fixture on the supporting barrel; putting the hollow-core ceramic insulator into a stepped hole in the upper plane of the fixture; filling the tungsten sizing agent into the hollow-core ceramic insulator, and starting the sucking pump; solidifying and sintering the tungsten sizing agent; plating metal; and grinding the hollow-core ceramic insulator. According to the hollow-core metallization equipment and the hollow-core ceramic insulator metallization method provided by the invention, a uniform metallization clad layer can be obtained on the hole wall of the hollow-core ceramic insulator, and the equipment is simple and quick in operation and high in production efficiency.