Low molecular alkyl amines are the most common and abundant amines in the atmosphere， with high water solubility and strong alkalinity， and are widely dispersed in the atmosphere in both the gas-phase and particle-phase. The gas/particle conversion of atmospheric low molecular alkyl amines contributes significantly to particle nucleation， growth of new particles， and the formation of secondary aerosols. It also affects the particle hygroscopicity， thus contributing to haze formations. The techniques to measure atmospheric low molecular alkyl amines are mainly Ion Chromatography （IC）， Gas Chromatography （GC）， High Performance Liquid Chromatography （HPLC）， Chemical Ionization Mass Spectrometry （CIMS）， and Single Particle Aerosol Mass Spectrometry （SPAMS）. Each measurement method has certain advantages and disadvantages， and limited applications in online mass spectrometry. In recent years， more attention has been paid to atmospheric low molecular alkyl amines. Previous research has measured gas-phase and particle-phase amines in different areas including urban， suburban， and marine. Research has progressed in identifying the concentration， composition， temporal & spatial distribution， source analysis， and atmospheric behaviors of atmospheric low molecular alkyl amines. Research is limited by sampling and measurement methods and our understanding of the mechanisms. We also lack information on time continuity and spatial coverage of different regional types. Improved measurement data is required. Despite our understanding of the sources of atmospheric low molecular alkyl amines and the mechanism of their atmospheric conversion， there remain great deficiencies in source analysis and atmospheric behavior. Further research is needed to address these deficiencies. We aim to introduce the various measurement methods for atmospheric low molecular alkyl amines and evaluate their advantages and disadvantages， the research progress， and existing problems. The atmospheric low molecular alkyl amines in China are discussed based on the aspects of concentration composition， temporal & spatial distribution， source analysis， and atmospheric behaviors. The future research focus on atmospheric low molecular alkyl amines is prospected.