Filial piety can be used as a joint point between tradition and modern，which is mental traits answering social changes. The article elaborated the essence of filial piety norm，relationship between filial piety and modernism，and dual filial piety’s connotation. 1029 adults from 18 to 74 years old were investigated to verify the relationships among self-construal and dual filial piety. The results were as follows：（1）There was positive relationships between self and filial piety.（2）Authoritative filial piety，reciprocal filial piety，and filial obligation were still common values in Chinese Mainland. Furthermore，reciprocal filial piety was significantly higher than authoritative filial piety.（3）Bicultural-self，which contain higher independent-self and higher interdependent-self，not only had more strong filial piety，but also demonstrated obvious advantages on the measurement of parental bordering instrument and life satisfaction scales，which suggested that bicultural-self has better social adaptation. In the end，further discussion and future research prospects were illustrated.