Abstract: Objective: To understand the cognition and behavior of female on skin care in Weifang. Methods: The female patients and their accompanying staff in Weifang third-grade hospital, female college students, graduate students and consumers in shopping malls were investigated by by self-made questionnaire. Results: (1) A total of 628 participants were investigated, including 302 in youth group (15-29 years), 217 in middle-young-aged group (30-39 years), 77 in middle-aged group (40-49 years), 32 in quinquagenarian group (50-59 years). The results showed that most of them had some knowledge about skin health, but had little knowledge about the hazards of sun exposure and the types of UV protection. (2) The facial cleansing product use rate in the youth group (88.7%) was higher than that in the other groups. And the use rate in the oily skin group (91.8%) was higher than that in the dry skin group and neutral skin group (P<0.05). (3) The use rate of moisturizing products in dry skin group (95.1%) was higher than that in mixed and oily skin group (P<0.05). And the use rate in youth group (93.4%) was higher than that in middle-young-aged group and middle-aged group. (4) The sunscreen products use rate in middle-young-aged group (52.15%) was higher than that in youth group (41.4%), middle-aged group（26.0%）and quinquagenarian group（15.6%）. Conclusion: The knowledge of skin care of the surveyed population is not comprehensive, and the skin care behavior of different groups is different.

Key words: skin care, cognition, behavior