Abstract: Acute myeloid leukemia(AML)is one of the most common acute leukemias in adults. Those patients with FLT3 mutations have a particularly poor prognosis. Recently, the emergence of a variety of targeted inhibitors has shown the capability of suppressing FLT3 signaling in vivo, which provided a new way to treat AML. In this paper, we reviewed those inhibitors based on their structures, which include indolone-related inhibitors, indolocarbazo-related inhibitors, benzimidazole/benzopyrazole-related inhibitors, quinoline/quinoxaline/quinazoline-related inhibitors, tricyclic inhibitors, pyrimidine-related inhibitors and others.