Abstract: Objective To understand the incidence and development of allergic diseases among the students in Wenzhou Medical College. Methods In 2009,2042 students in grade 1-3 in Wenzhou Medical College were enrolled in the survey, the retrospective questionnaires were used to collect the information of allergic diseases incidence in infant and toddler period, preschool period, school period and puberty. The analysis was conducted with statistical software SPSS 16.0. Results The incidence of allergic diseases increased with the age. Prior to adulthood,22.0% of students had suffered from allergic diseases. The incidence was 18.9% for females, and 24.0% for males. Atopic dermatitis and food allergy occurred in preschool period and school period were the risk factors to induce asthma and allergic rhinitis disease in puberty, allergic diseases in early life were risk factors to induce same allergic diseases in puberty. Conclusion The incidence of allergic diseases varied by age, and females had higher incidence than males. Allergic diseases have continuity, the allergic diseases in early life are the risk factors to the incidence of allergic diseases in following years.