PURPOSE: To provide a mold apparatus by which burrs on the peripheral part of a pot of a mold for molding a thermosetting resin can be reduced.

CONSTITUTION: The apparatus consists of a pot 1 into which a thermosetting resin is poured, a plunger 2 for pushing out the thermosetting resin poured into the pot 1, a pot holder 3a and a sub pot holder 3b holding the pot 1, a cull block 4 which is a part of a mold for molding the thermosetting resin, and an elastic means imparting the elasticity to the pot 1. In addition, the elastic means is constituted of an elastic pin 5 and an elastic pin holder 6 and a structure wherein the pot end face 1c of the pot is projected more than the pot holder end face 3c of the pot holder 3a is provided by the elastic means.