In the year 2023,high-frequency ultrasound technology has seen significant progress in the field of skin diseases.It has made notable achievements in both basic research and clinical applications.Particularly,it has been successful in skin disease diagnosis,pre-and post-treatment evaluations,artificial intelligence-based diagnosis,the transformation of basic research results,and new tumor treatment methods.This technology provides dermatologists with more accurate and multi-dimensional clinical diagnosis and treatment information.This article provided a comprehensive review of the latest progress in skin ultrasound technology in 2023.