Introduction to the main hall: The exhibition in the memorial hall is divided into a preface hall, six exhibition rooms, and two exhibition galleries, showing the whole process of Comrade Ulanhu from joining the revolution as a boy to working hard for the country. On the front of the prologue hall is a white marble seated statue of Comrade Ulanhu, with a huge painting of "Beautiful and Rich Inner Mongolia Prairie" in the background. The east and west walls are four groups of large imitation white marble reliefs 5.5 meters high and 3.5 meters wide, depicting the 80 years of turmoil from the May Fourth Movement to the present. The Chinese people, especially the people of Inner Mongolia, fought for national liberation and fought for the motherland. Unification and its contribution to China's revolution and construction have become an important part of China's revolutionary history. The entire display uses a total of 135 cultural relics, 286 historical photos, 9 paintings, and 126 documents.