The invention relates to a converter box, specifically a power concentration type electric locomotive high-strength aluminum alloy converter box, and aims to solve the problem that the existing converter box is high in self weight and cannot satisfy the full vehicle light weight requirement of the power concentration type electric locomotive. According to a scheme, the power concentration type electric locomotive high-strength aluminum alloy converter box comprises a square pipe aluminium profile welded base framework, wherein supporting columns are welded on the base framework; a top framework is welded at the upper ends of the supporting columns; supporting ribs and supporting cross beams are welded among the supporting columns; supporting aluminum plates, stainless steel supporting plates, connection fixed rib plates, fixed hasps, fixed plates and connecting strips are arranged on the ribs and the cross beams; grounding supporting bases are fixed at the two long ends of the base framework; a flying ring is fixed on the top framework; and covering aluminum plates are riveted on the periphery of the box body. The power concentration type electric locomotive high-strength aluminumalloy converter box has the advantages as follows: 1, the overall structural dimension and the weight can satisfy requirements on use space and whole weight losing; 2, the box is attractive and durable in structure and high in reliability; and 3, various kinds of cable equipment can be connected and fixed conveniently, the position can be adjusted quickly, and very high practicability is achieved.