Analyzing and solving problems cannot be done behind closed doors, and whimsical thinking cannot be done. We must go deep into the frontline and conduct investigation and research. Recently, the General Office of the Central Committee of the Communist Party of China (CPC) issued the "Work Plan on Promoting Investigation and Research throughout the Party", emphasizing once again the extreme importance of investigation and research, providing important guidance for the entire Party to vigorously promote investigation and research and do a good job in various work. The reason for attaching importance to investigation and research is fundamentally because practice is the source of knowledge and the only criterion for testing truth. As Marx said, "All social life is essentially practical." "Theoretical solutions require extensive accumulation of practical experience to reach perfection." Facts have proven that facing up to practical problems and conducting in-depth investigation and research can not only eliminate the rough and extract the essence, eliminate the false and retain the true, from one to the other, from the outside to the inside, but also grasp the essence of things through complex phenomena, Identify its inherent laws and propose solutions and countermeasures to the problem on this basis. As the saying goes, "Sitting in an office is all about problems, and going deep into the grassroots is all about solutions." Only by going deep into practice and conducting research can we understand the truth and the whole picture of things, grasp the nature and laws of problems, and come up with ideas for solving problems. Deepening practice and conducting investigation and research are not only the heirloom of our Party, but also the basic skill for doing all work well. As experts in conducting investigations and research, the older generation of revolutionaries set a model for the entire Party. Comrade Mao Zedong personally organized and participated in many in-depth and detailed investigations and studies during the extremely arduous work of revolution and construction. The "Investigation of the Hunting for Wu", "Analysis of Various Classes in Chinese Society", and "Investigation Report on the Hunan Peasant Movement" are recognized classic investigations and studies, He has successively made famous assertions such as "no investigation, no right to speak", "whenever there is no way, investigate and study", and "if there is a correct measure, investigation and research work must be carried out". In the course of our Party's endeavor, the fine tradition of attaching importance to investigation and research continues to be inherited and developed. The problem is the voice of the times. Every era will encounter unprecedented