Sincerely welcome you to 2020 2nd International Conference on Computer Modeling, Simulation and Algorithm (CMSA2020), which is supported by SERC Science and Engineering Research Center. With the progress of science and technology, the performance of computer modeling and simulation has been constantly improved, data acquisition has become more convenient and data analysis has greatly improved research efficiency. Growing researchers join in scientific research, and the increasing research interests also indicate that the prosperous period of Computer Modeling, Simulation and Algorithm research is coming.In this special period when the pneumonia epidemic still needs high attention, in order to respond to the epidemic prevention and control, and to ensure the safety of all participants to the greatest extent, CMSA2020 was conducted in the form of online cloud meeting on August 7, 2020. With meticulous arrangement of our conference staff and active cooperation of all the participants, we firmly believe that it is doomed to be a refreshing and effective mode of academic communication in the case of safety is guaranteed, from which all the participants surely benefit a lot.CMSA2020 was held through the ZOOM cloud meeting platform. Before the formal meeting, our staff set up test rooms for keynote speakers and author representatives respectively, mainly testing the video, audio, screen sharing and other operations. CMSA2020 was officially opening at 9:00am (Beijng Time) on August 7, 2020. This conference mainly adopted keynote speeches and oral presentations for academic research exchange, that is, specially invited experts gave a 40-minute keynote speech and each author gave a 10-15minute speech. After each presentation, we set a Q & A session of about 10-15 minutes, so that all authors can participate in it and get more research experience in the brainstorming.We invite Prof. Xueyan Lin and Prof. Kalyana C. Veluvolu to take part in CMSA2020 and make Keynote Speeches. Prof. Xueyan Lin from Beijing University of Posts and Telecommunications, China gave her keynote speech entitled CST Simulation and Analysis of Signal Integrity of Differential Transmission Lines. Prof. Kalyana C. Veluvolu from Kyungpook National University, South Korea made his keynote speech on Identification of Most Significant Brain Functional Networks with EEG. All participating authors also actively shared their latest academic achievements in Computational Modelling, Simulation and Its Application, Algorithm and Mathematics and related fields. This meeting was fast-paced, professional and efficient. All participants actively shared their academic achievements and extended more wonderful and interesting further researches during the Q & A session.We have authors from China, Spain, USA, Republic of Chile, Thailand, Colombia, Russia, Australia, France, Honduras, Australia, Romania and so on. We called for nearly a hundred professors with related research interests as Technical Program Committee members to maximize the quality and usability of this conference paper. We pursue high-quality academic papers by setting up strict reviewing mechanism and high standards of modification requirements all the time. According to main theme and topics, all article manuscripts are assigned to relevant experts for peer reviewing, and they mainly focus on the topic relevance, language standardization and originality. iThenticate Software matters lot in maintaining originality.According to the relevance of paper topics and on the basis of the suggestions of reviewers, CMSA2020 papers are divided into 5 sections: Computer Modeling and Simulation Technology; Applied Mathematics, Data Analysis and Data Mining; Advanced Algorithms, Analysis Model, Optimization Design and Its Application; Image Processing, Pattern Recognition and Artificial Intelligence and Communications and Intelligent Information System.On behalf of the organizing committee, I would like to express my sincere thanks to Journal of Physics: Conference Series for their accurate publication for CMSA2020 papers, involved reviewers and editors in Technical Program Committee for their time and energy in reviewing manuscripts and give professional comments. We will redouble our efforts to provide better and more perfect services for academic research and promote the development of computer modeling, simulation and algorithm. We truly hope for the future cooperation with you.CMSA2020 Organization Committees