A tool box, comprising: a box body forming an accommodation space for accommodating a tool head ; and a tool-head fixing assembly configured to fix the tool head, wherein the tool-head fixing assembly comprises a first positioning column and an elastic member , and the first positioning column comprises: a positioning part extending along a first straight line, wherein the tool head is sleeved on the positioning part; and a mounting part connected to the box body; characterized in that the tool-head fixing assembly has an assembled state and a disassembled state, when the tool-head fixing assembly is in the assembled state, the elastic member is mounted above the tool head, the elastic member forms an interference fit with the positioning part, and a projection of the elastic member on a plane perpendicular to the first straight line at least partially coincides with a projection of the tool head on the plane perpendicular to the first straight line, and wherein the tool-head fixing assembly further comprising a pressing cover , wherein the pressing cover is provided with a through hole, at least a part of the elastic member is located in the through hole, and when the tool-head fixing assembly is in the assembled state, the pressing cover abuts against a top surface of the tool head. a box body forming an accommodation space for accommodating a tool head ; and a tool-head fixing assembly configured to fix the tool head, wherein the tool-head fixing assembly comprises a first positioning column and an elastic member , and the first positioning column comprises: a positioning part extending along a first straight line, wherein the tool head is sleeved on the positioning part; and a mounting part connected to the box body; characterized in that the tool-head fixing assembly has an assembled state and a disassembled state, when the tool-head fixing assembly is in the assembled state, the elastic member is mounted above the tool head, the elastic member forms an interference fit with the positioning part, and a projection of the elastic member on a plane perpendicular to the first straight line at least partially coincides with a projection of the tool head on the plane perpendicular to the first straight line, and wherein the tool-head fixing assembly further comprising a pressing cover , wherein the pressing cover is provided with a through hole, at least a part of the elastic member is located in the through hole, and when the tool-head fixing assembly is in the assembled state, the pressing cover abuts against a top surface of the tool head. a positioning part extending along a first straight line, wherein the tool head is sleeved on the positioning part; and a mounting part connected to the box body; characterized in that the tool-head fixing assembly has an assembled state and a disassembled state, when the tool-head fixing assembly is in the assembled state, the elastic member is mounted above the tool head, the elastic member forms an interference fit with the positioning part, and a projection of the elastic member on a plane perpendicular to the first straight line at least partially coincides with a projection of the tool head on the plane perpendicular to the first straight line, and wherein the tool-head fixing assembly further comprising a pressing cover , wherein the pressing cover is provided with a through hole, at least a part of the elastic member is located in the through hole, and when the tool-head fixing assembly is in the assembled state, the pressing cover abuts against a top surface of the tool head. <EOS>