In recent years,the hazards of artificial light,such as light pollution of urban landscape lighting and automotive night residual light,is becoming more and more serious,especially for the growth and development of plants have great influence,but also affect the flowering of plants. So it is more and more paid attention,and becomes a hot topic in ecological protection. This paper analyzes the mechanism of flowering plants on light,introduces the possible potential impact of flowering on artificial light,and proposes the suggestions proper use of artificial lighting.