To provide a method for forming high-melting point metal carbide which can secure heat resistance and durability.

The method for forming a member composed of the high-melting point metal carbide includes: a first sintering step of forming the member composed of the high-melting point metal carbide; and subsequently a second sintering step of promoting a reaction between the high-melting point metal carbide while suppressing decarbonization, to obtain durability and heat resistance. Thereby, the member of the high-melting point metal carbide can be formed, which can secure heat resistance and durability.