Spondyloarthritis　(SpA)　is　a　prevalent　genetic　disorder　that　significantly　impairs　mobility,　particularly　in　the　spine,　sacroiliac,　and　peripheral　joints.　Recent　evidence　highlights　early　involvement　of　the　sternoclavicular　joint　in　SpA,　which　may　serve　as　an　initial　indicator.　Diagnosis　often　relies　on　CT　and　MRI,　neglecting　ultrasound＇s　potential　in　identifying　SpA-related　sternoclavicular　arthritis.　This　review　focuses　on　the　joint＇s　anatomy,　exploring　ultrasound＇s　diagnostic　and　therapeutic　role　in　SpA-related　sternoclavicular　arthritis,　aiming　to　provide　insights　for　future　ultrasound　applications　in　SpA　management.