In modern enterprise management, SOP (Standard Operating Procedure) has become the cornerstone to ensure efficient and accurate execution of work. The SOP flowchart, as a graphical representation of SOP, simplifies complex processes into an intuitive and easy-to-understand visual language, which is extremely convenient. It greatly improves the transparency and efficiency of operations. This article will combine ProcessOn to deeply explore the concept, function, application scenarios, drawing process and tutorials of SOP flowcharts to help everyone better understand and apply this important tool.