With the accelerated pace of urbanization，allergic diseases based on the allergic constitution increase，and it gives society a huge health losses potentially.This paper discusses the tertiary prevention of the Allergic Constitution in order to reduce the incidence of the Allergic Constitution and adjust from the Allergic Constitution to the PinHe Constitution and prevent the occur of allergy again.Focus on primary prevention，including prenatal and postnatal care，recuperating emotional，physical activity，diet and daily life nursed back to health，education and early identification of publicity，and so on，six other prevention measures.Secondary prevention mainly on using kinds of desensitization prescription to treat allergic diseases with reason.Tertiary prevention is using the “Distinguishing the Constitution-Disease-Syndrome” patterns to improve the allergic constitution and prevent recurrence.