iPollo public chain has released a Metaverse Evaluation Reference Criteria System to provide relevant reference criteria for the Metaverse space from 9 aspects such as technology, economy, art, function, etc. This criterion will be used for a series of training in iPollo Metaverse Institute to enable metaverse builders to understand and utilize this Evaluation Reference Criteria System. The Metaverse Space is different from other 3D scenes such as games, and it must first achieve persistence, according to iPollo chief scientist Marvin. The Reference Criteria are designed to land technical implementation details for the Metaverse Space, which involves avatars and objects with AI capabilities. iPollo expects to receive suggestions from the metaverse development community to support and continuously improve the Criteria.