Abstract It is highly delighted to introduce the proceedings dedicated to the 2nd International Conference on Maritime Development (ICMaD 2023), which was successfully held on October 4-5, 2023 in Makassar, Indonesia and hosted by Research Centre, Politeknik Ilmu Pelayaran Makassar. ICMaD 2023 is to bring together innovative academics and industrial experts in the field of maritime environmental. The goal is to provide a forum for researchers, practitioners, academics, and stakeholders in building collaborative relationships and partnerships between governments, the maritime industry, academic institutions and the rest of the world in order to promote sustainable and efficient maritime development. About 150 participants from academic, high-education institutes and other organizations took part in the Conference. The conference model was divided into two sessions, including oral presentations and keynote speeches. In the first part, keynote speakers were each allocated 20 minutes to hold their speeches. Then in the second part, parallel sessions whose submissions the papers, were given 15 minutes to perform their oral presentations one by one. We were very honored to have Prof. Dr. Paul Tae Woo Lee from Ocean College, Zhejiang University, China and Prof. Ir. Dr. Ab Saman Abd Kader, P.Eng, MIEM, CILT from University Teknologi Malaysia. In the keynote presentation part, we invited two professors and three practitioner as our keynote speakers. The first keynote speaker, Dr. Capt. Antoni Arif Priadi, M.Sc. shared a speech: Eco port (environmental port) and Green shipping. The second keynote speaker, Prof. Dr. Paul Tae Woo Lee, his presentation entitles Transforming Ports for a Sustainable Future: Embracing Smart Port Functions, Decarbonization, and Digitalization. The third keynote speaker , Prof Ir Dr Ab Saman Abd Kader, P.Eng, MIEM, CILT, Professor in Marine Transport and Safety his presentation entitled Smart and Green Solution on Port Operations. The four keynote speaker: Budi Cahyono, M.Sc shared a speech JICT digitalization journey commenced in 2001 until 2023 introducing Terminal Booking Systems (TBS) and Optical Character Recognized (OCR) platforms. The fifth keynote speaker, Captain Hari Subramaniam, M.B.A, from Singapore Office The Shipowners’ Club, Singapore, his presentation entitled Decarbonizing Shipping and Port. The proceedings present a selection of high-quality papers submitted to the conference by researchers from universities. All papers were subjected to peer-review by conference committee members. The papers were selected based on their quality and their relevance to the conference. The proceedings present recent advances in the fields of maritime environmental and other related research. I would like to express special gratitude to members of the conference committee and organizers of the conference. I would also like to thank the reviewers for their valuable time and advice which helped in improving the quality of the papers selected for presentation at the conference and for publication in the proceedings. Finally, I want to thank the authors, the members of the organizing committee, the reviewers, the chairpersons, and all other conference participants for their support of 2nd ICMaD 2023.