This paper primarily investigated deferred prosecution of drug use offence based on Articles 20, 23, and 24 of "Statute for Narcotics Hazard Control" regarding regulations of deferred prosecution for demanded/compulsory drug abstention and treatment, particularly observing and analyzing how drug abstention was dealt with. Article 24 especially had led to many controversial arguments when stipulated. After it was passed, methadone maintenance treatment (MMT) substituted treatment for the first-phase drug users, helping them abstain from drug use. Its effectiveness is still under observation and evaluation. Its major legislative problems are derived from how to effectively abstain from drug (observation, abstention compulsory abstention; substitute treatment). This paper also explored practice disputes (mainly coming after deferred prosecution) resulting from revised Article 24 of Statute for Narcotics Hazard Control and hopes to provide practice references.