To help automotive companies optimize their cybersecurity efforts, QuanAn Technology has delved deeply into the ISO 21434 standard, combined with its own professional practices, and integrated the cybersecurity practical experiences of OEMs and suppliers at all levels, to write the "Interpretation of TARA Analysis in ISO 21434 Standard". This document systematically analyzes the execution process of TARA analysis in the ISO 21434 standard, guiding readers step by step through regulatory cases to complete TARA. At the same time, it provides comprehensive coping strategies for the common pain points in TARA analysis, helping enterprises in the automotive industry chain to break through difficulties in cybersecurity practices and build the necessary cybersecurity resilience for automotive products.