A new type of portable tool cart for debugging and maintenance operation was developed,the material selection of the tool cart was demonstrated through the theoretical calculation of material mechanics,and the battery capacity required for operation and maintenance was calculated through the electrical theory.The innovative foldable design of the tool cart makes it compact for easy storage and transport.The tool cart has a built-in high-efficiency battery system,which is free from the constraint of traditional power supply,and can operate normally whether it is in a dimly lit corner or a temporary training site.Through the application of the new portable tool cart for debugging and maintenance operation,the physical burden of the training room administrator can be greatly reduced,the work efficiency can be significantly improved,and the operation and maintenance working condition can be optimized.By installing peripherals such as 4G and 5G intelligent high-definition cameras and Beidou locator,remote teaching training and safety monitoring can be realized.