Capital punishment in Macau was formally abolished in 1976 and reiterated in the Penal Code of Macau in the 1995.
Before that, capital punishment was last used in the 19th century. Under the principle of independence of legal system in Macau Basic Law, Macau continues its repudiation of capital punishment after the handover to People's Republic of China in 1999 despite the fact that capital punishment is practised in China.
The longest sentence in the Macau legal system is 30 years.
References
Capital punishment in Macau Wikipedia(Text) CC BY-SA