PURPOSE: To improve the mechanical strength of the small-diameter part or thin part of the noble metal sintered compact.

CONSTITUTION: A noble metal reinforcing wire 4 or noble metal reinforcing plate is partly or entirely embedded into the noble metal sintered compact 1. An annular part 6 is formed to the partly exposed part of the noble metal reinforcing wire 4 or the noble metal reinforcing plate if the wire or the plate is partly embedded and partly exposed. More particularly the noble metal reinforcing wire 4 or noble metal reinforcing plate described above is embedded into the small-diameter part 2 or thin part of the noble metal sintered compact 1, by which the noble metal sintered compact which is improved in the mechanical strength of this part and is applicable to ornaments and industrial art works is obtd.