The invention belongs to the technical field of safety cabinet, and particularly relates to an argon arc welding safety cabinet for electric power construction. The argon arc welding safety cabinet for the electric power construction comprises a cabinet shell, supporting mechanisms, supporting rods, a supporting plate, crossed partition plates, fixed clamping rings and fixed plates. According to the argon arc welding safety cabinet, the cabinet shell is not thickened by using a traditional method, which is because the use of the traditional method to thicken the cabinet shell indeed makes thesafety cabinet be firmly fixed to a certain degree, but increases the overall weight of the safety cabinet so as to bring inconvenience to users, and raises the cost of the safety cabinet. According to the argon arc welding safety cabinet, the impact force is firstly transmitted to a welding machine through two crossed partition plates, the impact force borne by a cabinet body is borne by the welding machine, and the loss brought by the damage of the welding machine to people is less compared with the damage caused by explosion due to the collision of an argon bottle; and if the welding machine cannot completely bear the impact and is damaged, the two supporting mechanisms can be triggered, and the two supporting mechanisms are used for preventing the argon bottle from being impacted and exploded.