<p>It has been hypothesized that the face-centered cubic structure of 7085 aluminum alloy does not exhibit environmentally induced cracking (EIC: refers to the cracking phenomenon of materials under the combined action of specific environment and stress) behavior in aluminum alloy. There are relatively few studies on the intuitive representation for the distribution of hydrogen in high-strength aluminum alloys, the process and mechanism of hydrogen action. In the manuscript, the environmental hydrogen and hydrogen-induced cracking behavior of the 7085 aluminum alloy were investigated through the meticulous design of a simulated working environment characterized by elevated temperatures and humidity levels. Meanwhile, the utilization of time-of-flight secondary ion mass spectrometry (TOF-SIMS) equipment has led to the discernment of a conspicuous accumulation of hydrogen. The MgZn₂, which is distributed continuously, functions as the anode and exhibits greater electrochemical activity than aluminum. This increased activity can promote the adsorption process. The transport of hydrogen (H) at the grain boundaries, in conjunction with chemical reactions, has been demonstrated to result in two distinct phenomena: grain boundary embrittlement and intergranular environmental cracking.</p>