The paper analyzes the status and forming causes of the marginal groups in science popularization such as the floating population, women, the handicapped, countrymen and the poor, and indicates that low science literacy and poor condition of acquired knowledge of the marginal groups in science popularization exposes a serious justice problem in science popularization, and that the government and society lack or have difficulty in realizing the impartiality in science popularization in three aspects, that is the policy in science popularization and the focus of country's attention, the distribution of the resources in science popularization, and the specific practice and actual effects in science popularization. Finally, the text puts forward four pieces of advice to achieve impartiality in science popularization.

marginal groups  /  science popularization  /  science literacy impartiality in science popularization