The disclosed is a household safe, which comprises a flower vase 1, an upper cover 2, a rubber sealing ring 3, a barrel 4 and a cipher code lock, wherein, the cipher code lock is arranged on the barrel, the flower vase is bond together with the upper cover, and the upper cover is in screw connection with the barrel through the rubber sealing ring. Having the safety performance of burglary resistance, antisquashy and mince and insect resistance, the household safe is suitable for ordinary resident to store valuables such as document of value, deposit book, certificate of share, cash and gold and silver jewelry. The utility model has the advantages of simple structure, easy fabrication, small size, light weight, low raw material consumption, easy transportation and easy installation. In addition, the safe can be used as ornaments for flower arrangement.