Finite element method is a powerful analysis tool in engineering field. While how it reflected in the industry field is still very unfamiliar for many people. This book presents a review of finite element method application in industry field. First three chapter introduced how finite element method works. Chapter 1 is a brief introduction of FEM’s history and basic theory. Chapter 2 illustrates the mathematic models of FEM. Chapter 3 introduces three most popular commercial software. Chapter 4 to 7 shows the FEM’s application in solid mechanics, structures, heat transfer and manufactory. Specific examples are provided in each topic. Thanks to the people who works so hard on this field, enjoy!