The invention discloses a dual-opening heat insulation fireproof door which comprises a door skeleton and door leaves. The door leaves are connected with the door skeleton through a fireproof hinge. Asealing piece is arranged at the contact position of the door leaves. A door closer and a sequencer are connected between the door leaves and the door skeleton, an inner skeleton is arranged inside the door leaves, the door leaves are divided into a plurality of regions through the inner skeleton, the inner skeleton is filled with expanded perlite, an extra-fine glass wool board is adhesively connected to the surface of the expanded perlite, phenolic foam plastics are adhesively connected to the surface of the extra-fine glass wool board, and a gluing fireproof board is adhesively connected to the surface of the phenolic foam plastics. Fireproof doors are closed in sequence, the phenomenon that the fireproof doors collide with each other is avoided, the expanded perlite is arranged insidethe fireproof doors, the fireproof effect is improved, the sealing piece is arranged between the door leaves, the phenomenon that flames run out can be effectively avoided, and the fireproof performance of the fireproof door is greatly improved.