A battery box, characterized in that, comprising: two end plates; two side plates, wherein the end plates and the side plates are connected end to end in sequence to enclose to form a cavity of the battery box; each of the end plates is respectively bent at different positions to form a plurality of reinforcing members and a plurality of supporting members, each of the reinforcing members is parallel to the bottom surface of the battery box, at least one supporting member is provided between any two adjacent reinforcing members; and the location where the reinforcing member is opposite to the supporting member is a connecting portion, wherein a connecting member of the battery box is connected to a case of a battery pack through the connecting portion; there are two reinforcing members, and the reinforcing members comprise: a first reinforcing member, formed by bending the bottom of the end plate for a plurality of times; a second reinforcing member, formed by bending the top of the end plate for a plurality of times, wherein the first reinforcing member and the second reinforcing member are both located out of the cavity of the battery box; the first reinforcement member and the second reinforcement member both comprise: two first bending portions arranged oppositely, wherein both the two first bending portions are provided with a plurality of first connecting holes corresponding to each other; the first connecting holes are the connecting portions, and each of the supporting members is arranged between the first connecting holes corresponding to each other. two end plates; two side plates, wherein the end plates and the side plates are connected end to end in sequence to enclose to form a cavity of the battery box; each of the end plates is respectively bent at different positions to form a plurality of reinforcing members and a plurality of supporting members, each of the reinforcing members is parallel to the bottom surface of the battery box, at least one supporting member is provided between any two adjacent reinforcing members; and the location where the reinforcing member is opposite to the supporting member is a connecting portion, wherein a connecting member of the battery box is connected to a case of a battery pack through the connecting portion; there are two reinforcing members, and the reinforcing members comprise: a first reinforcing member, formed by bending the bottom of the end plate for a plurality of times; a second reinforcing member, formed by bending the top of the end plate for a plurality of times, wherein the first reinforcing member and the second reinforcing member are both located out of the cavity of the battery box; the first reinforcement member and the second reinforcement member both comprise: two first bending portions arranged oppositely, wherein both the two first bending portions are provided with a plurality of first connecting holes corresponding to each other; the first connecting holes are the connecting portions, and each of the supporting members is arranged between the first connecting holes corresponding to each other. a first reinforcing member, formed by bending the bottom of the end plate for a plurality of times; a second reinforcing member, formed by bending the top of the end plate for a plurality of times, wherein the first reinforcing member and the second reinforcing member are both located out of the cavity of the battery box; the first reinforcement member and the second reinforcement member both comprise: two first bending portions arranged oppositely, wherein both the two first bending portions are provided with a plurality of first connecting holes corresponding to each other; the first connecting holes are the connecting portions, and each of the supporting members is arranged between the first connecting holes corresponding to each other. two first bending portions arranged oppositely, wherein both the two first bending portions are provided with a plurality of first connecting holes corresponding to each other; the first connecting holes are the connecting portions, and each of the supporting members is arranged between the first connecting holes corresponding to each other.