Objective Qin Kai Ling injection (QKL) is made upon traditional Chinese medicine formulation “An Gong Niu Huang Wan”, is widely used to treatment a lot of diseases. This review aims to assess the safety of QKL. Methods We searched Chinese databases CNKI, VIP from 1987 to April 2009. Two authors extracted the data. Results Totally 1 486 cases were included in this review. We unable to answer the question about the incidence of adverse drug reaction/adverse event (ADR/AE) induced by QKL due to absence of total numbers of producing and market information. It was estimated based on the limited data that the possibility of ADR/AE by using QKL should be low. We found some ADR/AE may induced by incorrect use of QKL, such as used in infants, and some incompatibility drugs were used together with QKL, four patients died in private clinics or patient’s home. We unable to distinguish the ADR or AE based on the poor reported data. Conclusion Current weak evidence shows that QKL has a low risk of ADR/AE. The use of QKL in some ADR/AE cases may be questionable. The reporting of ADR/AE needs to be much improved based on “Recommendation for reporting traditional Chinese medicine adverse drug reaction”.