On October 4, The Royal Swedish Academy of Sciences decided to award the Nobel Prize in Physics 2022 to Alain Aspect, John F. Clauser, and Anton Zeilinger for their great contributions to quantum information science. Specifically, quantum entanglement.“Quantum Entanglement” has been a hot topic for the public and extensive discussion emerges every day. People are interested in describing the inexplicable and complex relationship with this word in daily life. However, what does “Quantum Entanglement” truly mean? Why is it so important that these three scientists were awarded this most distinguished prize?