The 2023 6th International Conference on Mechanical, Electrical, and Material Applications (MEMA 2023) was successfully held in Changsha, China from February 24th to 26th, 2023 (virtual event). This Seminar was the sixth in a series of topical meetings, and the MEMA series of conferences have come to all successful conclusions in Xi’an, Chongqing, and Chengdu from 2018 to 2022. MEMA 2023 was attended by about 150 participants from different countries.For this fourth meeting we chose Changsha to be our Conference Venue and met with our old and new friends again. While the location of the Conference has been changed sometimes, what remained invariant is the aim of these meetings, which is to discuss recent advances and key challenges and explore new perspectives and research directions facing the development of mechanical, electrical, and material applications in a pleasant and friendly atmosphere. At this meeting we had a comprehensive overview of this fascinating field and of future scenarios thanks to the participation of leaders of the most important projects.The Conference presented an outstanding program of papers covering the most recent advances in mechanical, electrical, and material applications, including Mechanical Dynamics, Precision Machinery, Electromagnetic Compatibility, High Voltage and Insulation Technology, Circuits and Systems, Functional Materials, etc.. The papers in this Proceedings published by Journal of Physics: Conference Series-IOP Publishing represent a collection of the invited talks and academic contributions.The Conference Program consisted of four invited speeches presented in the plenary sessions, including four hot topic speeches highlighting the most recent advances in the field, and various oral presentations. The program included a speech by Dejie Yu who is Member of the Standing Committee of the Hunan Provincial CPPCC and Professor in the College of Mechanical & Vehicle Engineering of Hunan University, a speech title with “Research on Weak Fault Signal Detection Method Based on Gradient Acoustic Metamaterials”. Aiming at the problem that weak signal is difficult to detect, an enhanced detection method based on gradient index acoustic metamaterial was proposed. And still a fault signal enhancement detection method based on gradient index acoustic metamaterial was proposed.We would like to thank the participants, especially those who contributed speeches, posters and manuscripts, for making MEMA 2023 such an exciting and memorable conference. We thank the Technical Program Committee for putting together an outstanding Program. Finally, we thank the Local Organizing Committee for their tireless and expert efforts in the organization of MEMA 2023, and all of our colleagues whose friendly and efficient service contributed much to the success of the Conference.The Committee of MEMA 2023List of Committee Member is available in the pdf