This chapter discusses the quantum information splitting technique based on quantum entanglement, aiming to realize the splitting of Bell state and arbitrary state through different quantum channels (e.g., entangled state, cluster state, W state, etc.). By analyzing the properties of different quantum bits, this chapter proposes a scheme to accomplish the same task by using fewer quantum information resources or to accomplish more tasks by using the same resources. In addition, this chapter provides a theoretical foundation for designing noise-resistant multi-degree of freedom quantum stealth state transfer protocols and continuous-variable quantum cryptography applications. Finally, this chapter summarizes the potential applications of quantum information splitting in information security and quantum communication.