The book introduces the technology and application of microfiltration, including the definition and overview of microfiltration membrane, microfiltration membrane theory and mechanism, system design, and the application fields . And also it taking the examples of microfiltration membrane, membrane pollution and prevention measures. The purpose of writing this book seeks to highlight the technical and practical , and can be used in membrane separation technology research, production and application of membrane technology of enterprise engineering and technical personnel, management personnel, and also for the relevant professional college teachers and students for reference.