Before Qin unified China

the restricting policy of industry and commerce management development had been adopted that developed commerical economy in some degree under country intervention. In the period of Warring States

although this action had intervened the social economy development

the policy promoted agriculture development and ensured the quantities of commodities which promoted the Qin kingdom’s unifying worker. The benefitting policy to the development of industry and commerce didn’t come ture really after unifying China. For the war need

the restricting policy of industry and commerce development went even further in Qin dynasty. The Qin dynasty was doomed to perish because that the perverse acts had great damage to normal development of industry and commerce.