A microwave heating apparatus includes, a processing chamber, a microwave introducing unit, a support member and a heat assist member. The processing chamber is configured to accommodate an object to be processed, the processing chamber having a top wall, a bottom wall and a sidewall. The microwave introducing unit is configured to generate a microwave for heating the object and introduce the microwave into the processing chamber. The support member is configured to support the object by contact with the object in the processing chamber. The heating assist member is configured to generate heat by absorbing the microwave and assist heating of the object by radiant heat, the heating assist member disposed to be separated from the object by the support member.