采用问卷调查及面谈对１２０例行人工流产的未婚女青年的心理社会危险因素进行分析，结果表明：恋人、文化程度低、工人及无业者是未婚性行为及妊娠、未婚人流的高危人群，将性行为看作是忠于爱情、在恋爱中一时冲动及对性行为的好奇是导致未婚性行为、妊娠的危险因素．提出应加强青少年树立正确的恋爱观教育．还应对他们加强性知识的宣传教育及健康教育，提高自我文化道德修养，以减少或避免婚前性行为的发生 The questionnaire survey and interviews were used to analyze the psychosocial risk factors of 120 unmarried young women who had induced abortion. The results showed that: lovers, low educational level, workers and the unemployed were unmarried women and high risk groups of pregnant and unmarried migrants. Sexual behavior as loyalty to love, impulsiveness in love and curiosity about sex are the risk factors for unmarried sex and pregnancy. It is suggested that young people should be strengthened to establish the correct education of love view. They should also strengthen their publicity and education of sexual knowledge and health education and enhance self-cultural morality so as to reduce or avoid the occurrence of premarital sexual behaviors