Abstract: The pickling process is a crucial component in the steel processing workflow, and its effectiveness directly impacts the quality of subsequent processing steps as well as the final quality of the steel strip. To investigate the key factors influencing the pickling rate of scale on the steel strip surface, this paper first elaborates on the basic reaction mechanisms of the pickling process, including the dissolution, mechanical peeling, and reduction of scale, and clarifies the synergistic effect of each mechanism in removing the oxide layer. Subsequently, the study focuses on three methods for determining the pickling endpoint. Through Energy Dispersive X-ray Spectroscopy(EDX) experiments conducted after pickling, the feasibility and accuracy of the potentiometric method in practical applications are verified. Finally, experimental research is carried out using a CHI604B electrochemical workstation. The acid solution temperature is set within the range of 45 ℃ to 80 ℃, with tests conducted at intervals of 5 ℃ to verify the effect of pickling temperature on pickling time. Meanwhile, the acid solution concentration is set at gradient levels of 10%, 13%, 16%, and 18% to examine the impact of pickling concentration on pickling time. This study systematically reveals the influence mechanisms of temperature and concentration on the pickling kinetic behavior, providing theoretical basis and technical support for optimizing the pickling process parameters.