The Evolution of China’s anti-narcotics legislation in 30 years build up Legislative background of Anti-drug Act.from 1949to 1978，The main form of Anti-drug legislation are the Communist Party of China and governments at all levels related policies，legal documents and major focus are the big Region Legislative. Befor 1998，According to the strike-hard of policy，China has gradually set up mainly to the Criminal Law，Administrative Law，supplemented by local legislation and the system of anti-drug legislation. after 1998，China’s drug policy and legislation has been adjusted and emphasize prevention-oriented and comprehensive management. Such adjustments from the subjective harmony，and people-centered development philosophy，and other social and criminal policy of the impact of the objective to adapt to new situations，new practice needs. The emergence of a new drug control to change the past，ideas，improve relevant legislation. Harm reduction measures need a large number of social legislation，executive and the legislature to regulate. “Narcotics Law” was implemented，the legislators will focus on progressive social legislation to fill the existing vacuum drugs，continue to strengthen the executive and the legislature. The local anti-drug legislation will also be extensive amendments，the fever.The future will be to form a “drug laws” as commander in chief，drug criminal legislation，executive and the legislature，the Legislative Council the three pillars of the social pattern of anti-drug legislation.