The Conference on Quantum Simulations of Fundamental Physics is held annually to highlight recent progress in quantum simulation research, aiming to showcase the latest advancements in the field of quantum simulation research. The 3rd Quantum Simulations of Fundamental Physics will be held in Sanya, Hainan, from November 16 to November 20, 2025, focusing on advances toward quantum advantage. Topics of interest include quantum sensing with entangled atoms and qubits, applications of quantum algorithms and simulations, and quantum information processing with atom tweezer arrays. UPOLabs sponsors this conference, working together with industry peers to promote the forefront development of quantum simulation research.