Digital human technology is developing rapidly and is being used in various fields. This document defines the communication services for digital humans and the requirements for developing and utilizing digital humans. This document defines entities and their roles in communication services for digital humans, interaction and communication types between entities, and describes human and digital human communication service types. It also defines the concept model for communication services for digital humans. Emotions and memories are needed for perfect communication, and digital human communication also requires emotions and memories. This document also define requirements of communication services of digital human using emotions and memory.