Industrial heritage, solidly speaking, means “the industrial facilities and man-made industrial remains in a run-down place that have fallen into oblivion, some of them may still be in use though.” Some Western countries take the “industrial archaeology” as a very important step for conserving the industrial heritage. The ideas and deeds to protect and preserve the industrial heritage around the world started from after the end of World War II. As the science and technology develops, some factories originated from the Industrial Revolution were no longer adequate to meet the increasing demands of the new environment and the others became obstacles under some new urbanization and redevelopment plans. Their demolitions raised the concerns of many who indicated that the society should preserve these industrial heritages. Thus, the World Heritage Council took up “Protecting the Industrial Heritage” as the theme of “International Cultural Property Day” on April 18, 2006 and this issue became the focus of the entire world. This paper takes some foreign industrial heritage conservation projects as examples and tries to explore this important issue from different aspects.