Intelligent algorithms, such as artificial intelligence and various optimization algorithms, provide new avenues for designing nanophotonic structures and nanophotonic devices, and offer efficient calculation methods for photonic crystals, metamaterials, metasurfaces, topological photonics, etc. On the other hand, development of photonics in particular integrated photonics boosts new paradigm of computing such as brain-inspired neuromorphic computing, which could lead to power-effective, high-speed, and intelligent information processing.