It focuses on the impact of environmental factors on reproductive health and maternal perinatal health. Environmental factors include nutritional, natural environments (such as air, water, and soil), chemical pollutants (such as heavy metals, pesticides, and industrial chemicals), physical environments (such as noise and radiation), and social environments (such as work stress, lifestyle, and socioeconomic conditions). The goal is to identify and evaluate how environmental and nutritional factors affect reproductive system functions, pregnancy processes, fetal development, and infant health, providing scientific support for formulating public health policies to reduce environmental risks.