Is Idealistic Reconstruction Necessary? How is it Possible? This book is based on a series of discussions and activities centered on "idealism's setback and reconstruction" in 2021 by some humanistic intellectuals in mainland China who are concerned about the survival of the people, the improvement of spiritual problems, or directly involved in social practice and rural construction. This book has continuity with the concern and thinking of Taiwan News Forum Series 30 "Restarting Humanistic Knowledge Thought" and 31 "Is It Necessary to Restart Humanistic Knowledge Thought? How Is It Possible?" It can be said that "reconstruction of idealism" is a discussion link of the "restart of literary knowledge and thought", and is also a focus of issues with urgent thought-practice orientation.