Abstract:In recent decades,the research of plant responses to global climate change have been caused widely concern.Here,we briefly summarized the effects on plant sexual reproduction of many factors contributing to climate change,including warming,greenhouse gas concentrations,ultraviolet radiation and aerosol.(1)Moderate warming has advanced the flowering time of most plants,accelerating pollination and fertilization,causing separated stage between flowering and pollinator,and partly increasing plant reproductive biomass.However,severe warming produces only negative effects on plant reproduction.(2)Changed greenhouse gases concerned mainly include water vapour,CO2 and O3.Of these factors,water deficit and excess both decrease the plant reproductive biomass.The increase of CO2 concentration is generally beneficial to pollination,fertilization,and reproductive biomass,which is contrary to the increase of O3 concentration.(3)The enhanced UV-B radiation affects the flowering time and is harmful to pollination and fertilization.Its effects on reproductive biomass are complicated mostly negative but few positive.(4)The effects of increased aerosol concentration on plant reproduction depend on the aerosol loading amount,canopy structure,and environmental conditions.Finally,we conclude the weakness in most related studies in order to provide some new research approach for better understanding of the response mechanism of plants to climate change.