The invention discloses a stable accommodating device for a new-energy vehicle storage battery. The stable accommodating device comprises an installation main body, an installation groove and a bearing plate, wherein the installation groove is formed in the upper surface of the installation main body, the lower surface of the bearing plate is fixedly connected with upper surfaces of two connectiondevices, the two connection devices are respectively arranged on the left side and the right side of the lower surface of the bearing plate, and the opposite sides, far from each other, of the bottomends of the two connection devices are respectively and fixedly connected with the sides, close to each other, of two first connection blocks. The stable accommodating device of the new-energy vehicle storage battery is provided with the bearing plate, the connection devices, a first sliding rod, a first rolling device, a second rolling device, a shell body and a third rolling device, so that thestorage battery is convenient to disassemble; thus, a worker can quickly disassemble the storage battery, the work efficiency of the worker is improved, storage battery overhaul or replacement is prevented from being affected, and new-energy vehicle use of people is prevented from being affected.