Abstract: The Qianlong and Jiaqing reigns was an important historical stage when China’s feudal society produced the seeds of transformation. With Qing rule proceeding from prosperity to decline, a variety of social contradictions were revealed. Confronted with a myriad of social problems such as water management, grain transport, salt administration, copper administration, rising prices and population, many officials and scholars put forward their own plans and propositions aimed at resolving these social problems. Statecraft solutions however still did not overcome feudal constraints, but did deeply influence later modern scholarship