Menthae Haplocalycis Herba has been widely applied in such fields as food, cosmetics, daily necessities, medicine and health, due to its unique efficacy. However, as the safety of traditional Chinese medicines has been of increasing concern, the quality issue of Menthae Haplocalycis Herba and its decoction slices has become a key obstructive factor for exports. This article focused on the control over Menthae Haplocalycis Herba''s adulterants, exogenous hazardous residues and internal properties (chemical compositions, spectrum effect relationship). Moreover, current studies on the quality of Menthae Haplocalycis Herba and its decoction slices, as well as the existing problems in recent years were systematically summarized in the expectation of improving the means of quality control of Menthae Haplocalycis Herba and its decoction slices, enhancing its quality standards, and ensuring the use safety and effectiveness.