The 4th International Conference On Agriculture and Applied Science (ICoAAS) will be held 09 November 2023 in Emersia Hotel & Resort, Bandar Lampung City, Lampung, Indonesia. Hosted by Politeknik Negeri Lampung, the event is intended to provide a technical forum and research discussion on New Renewable Energy, IT to Support Smart Agriculture, Smart Agriculture, AI Technology for Agriculture, and Machine Learning for Agriculture.The conference will cover a series of presentations and discussions in plenary, and concurrent. It is aimed to bring researchers, academicians, scientists, students, and practitioners together to participate and present the latest research findings, developments, and applications related to various aspects.