Recently, a nearly 200 square meter "one-stop service area for investment and construction projects" was officially launched at the Administrative Approval Service Center in Rencheng District, Jining City, Shandong Province. This special zone breaks down departmental barriers and deeply integrates the functions of 12 key approval departments closely related to investment and construction, including development and reform, planning, housing and construction, water affairs, and fire protection. Since the beginning of this year, the Commission for Discipline Inspection and Supervision of Rencheng District has made "efficiently accomplishing one thing" a key focus of optimizing the business environment supervision, focusing on the difficulties and bottlenecks of enterprise affairs, urging functional departments to strengthen cooperation and coordination, and taking multiple measures to promote diversified ways of handling affairs, optimized procedures, and simplified materials. The disciplinary inspection and supervision organs of Jining City have made optimizing the business environment a key focus of supervision, using the "room group" linkage mechanism to tighten and compact the main responsibilities and regulatory responsibilities of party organizations and relevant functional departments at all levels, effectively breaking through the bottlenecks that affect the business environment. Whether the business environment is good or not, the feeling of enterprises is the most direct. The Discipline Inspection Commission and Supervisory Commission of Jining City selected 38 private enterprises and key projects with different industries, scales, and strong representativeness from 14 counties (cities, districts) in the city as city level monitoring points for the business environment. They improved the work mechanism of regular contact, problem reporting, and problem handling, and adopted methods such as problem direct reporting and front-line research to ensure that the damage to the business environment was directly reflected by enterprises to the disciplinary inspection and supervision organs. A good political ecology and cadre style are powerful guarantees for improving the business environment. The Jining Municipal Commission for Discipline Inspection and Supervision, in conjunction with relevant departments, has issued three lists for political and business exchanges. The "positive list" focuses on enterprise related services and encourages public officials to boldly perform their duties and take on responsibilities; The "negative list" clearly defines the scope of "prohibited activities" and sets a red line for political and business exchanges; The "Guiding List" encourages private entrepreneurs to abide by the principle of fair competition, produce and operate in accordance with the law, and consciously regulate political and business exchanges. In order to avoid repeated inspections and arbitrary inspections that interfere with normal production of enterprises, the Discipline Inspection Commission and Supervision Commission of the city supervise and promote the Municipal Judicial Bureau to formulate institutional norms such as the list of administrative penalties for minor acts that are not punished and the list of administrative coercive measures that are not implemented for general illegal acts, and the list of administrative coercive measures that are not implemented, in order to prevent the abuse of law enforcement power, abuse of power for personal gain, and other issues related to enterprise law enforcement.