The 4D Theater is located on the 2nd floor of the Beijing Planetarium B. The entire theater can accommodate 200 viewers at the same time. The science programs played are very characteristic. The audience needs to wear special polarized stereo glasses when watching the film. According to the development of the film's plot, the special effects equipment will produce special effects such as water spray, wind spray, lightning, back stabbing, ball rolling, ear wind and leg slapping. Synchronized with the film's live effects let children learn scientific knowledge in the vivid and interesting story, and let "big friends" explore the mysteries of nature in the thrilling adventure.