Columbarium (box structure) is a kind of ash storage rack, which belongs to the technical field of funeral supplies, and provides an ash storage frame with a beautiful and generous, simple structure and convenient disassembly and assembly, which includes a base, a support column, a beam, a cover plate and a partition, the support column is installed on the base, the beam is installed on the support column, the support column and the beam are provided with a card slot, the partition plate is inserted in the card slot, the partition plate forms a box through the support column and the beam, and the support column, the beam and the partition can be installed according to demand. The four sides of the partition are all U-shaped structure, the partition plate is inserted in the card groove, and is fixed with a screw, a cover plate is arranged above the screw, the cover plate is a "U" shaped structure, the partition plate is stainless steel material, the connection between the support column and the cross beam, the connection between the support column and the base all adopt plugging, and the utility model is suitable for ashes shelving and management applications.