The invention discloses an ultrahigh temperature forming mold and a manufacturing method thereof. The ultrahigh temperature forming mold comprises a metal substrate, an adhesion layer and a thermal barrier layer, wherein an operating surface is arranged on the metal substrate; the adhesion layer is sprayed onto the operating surface of the metal substrate; and the thermal barrier layer is sprayed onto the adhesion layer. In the ultrahigh temperature forming mold, the adhesion layer and the thermal barrier layer are sprayed onto the metal substrate, so that the mold has higher intensity and higher toughness; in the presence of the thermal barrier layer, the mold has higher high-temperature resistance, abrasion resistance, oxidation resistance and thermal insulation performance and can be suitable for ultrahigh temperature forming conditions of various high-melting metals at the forming temperature of more than 1,000 DEG C; and compared with a hard alloy sintered in the prior art, the metal substrate for forming a complicated cavity has a simple processing process and is easy to form.