Abstract:A variety of microorganisms constitute the normal microbiota in human reproductive tract. Lactobacillus is predominant among the microorganisms in reproductive tract of healthy people as it maintains the ecological balance of reproductive tract and prevents the invasion of pathogens. Disruption of the micro-ecological environment can lead to various diseases such as bacterial vaginosis, sexually transmitted infection, adverse pregnancy outcome, infertility and tumor. In addition to conventional antimicrobial therapy, probiotics play an important role in restoring community structure and maintaining reproductive health in response to reproductive tract inflammation. This article reviewed the research progress on the correlation between reproductive tract microecology and reproductive health in men and women.