Decarboxylation of amino acids is considered to be a significant pathway of renewable resource transformation, and could convert to primary amine, diamine and their derivatives. Various methods of amino acids decarboxylation were reviewed, including the way of using biocatalysts, chemical catalysts, thermal decomposition and photoelectrochemistry. China has become a country with the big amount of amino acids production and consumption. The development of food and feed industry of amino acids industry is on the way to maturity, however the industry realization of the downstream products is still lack of technology and experiences. Therefore, developing new high efficient catalysts and more efficient routing seems important to break the monopoly of the core technology of amino acids industry.