An object of the utility model is to provide a welding rod formula heat -preserving container of simply taking solves the welding rod and pops out in can following the heat -preserving container, andneed not to open the take technical problem of welding rod of whole heat -preserving container end cover. Including heat -preserving container body, welding rod ejection mechanism, drag link mechanismand shrink lid mechanism, welding rod ejection mechanism includes top pressing block and is used for connecting top pressing block and the elastomer of heat -preserving container body rear end cap, the drag link mechanism is including following the gliding push -and -pull rod of heat -preserving container body section of thick bamboo wall fore -and -aft direction, and the rear end and the top pressing block of push -and -pull rod are connected, be equipped with the fixed slot that is used for fixed push -and -pull rod on the heat -preserving container body, be equipped with the opening that is used for popping out the welding rod on the front end housing of heat -preserving container body, the shrink is covered the mechanism and is articulated with the opening including contracting the elastomer that covers and be used for connection shrink lid and heat -preserving container body, contract to cover. The beneficial effects of the utility model are that: the welding rod can be in the heat -preserving container auto -eject, take more intelligently, improve work efficiency, the energy saving.