Abstract: Bacillaceae is an important part of plant ecology, which is widely distributed and diverse, and plays an extensive and necessary role in the growth cycle of plants by promoting growth, resisting diseases and pests, and resisting adversity. Endophytic Bacillaceae and its products not only have great application value in the field of agricultural biological control, but also provide a new feasible idea for solving the problems of new drug research and development, environmental restoration and so on. In this paper, the diversity of endophytic Bacillaceae, the function of endophytic Bacillaceae to host plants by secreting or inducing effector molecules such as growth hormone, antimicrobial proteins and lipopeptide, enzymes, etc. were reviewed. In addition, the diversity of endophytic Bacillaceae and the functional mechanism of effector molecules were summarized and prospected.

Key words: endogenous, Bacillaceae, antibacterial, biocontrol, natural product