Born on 10 December 1958 in Taipei city, Wei-Der Chang contracted polio when she was six month old. As a consequence her arms became paralyzed and she became unable to use her right foot properly. In the course of the years her left foot proved to be her mobile strength releasing her artistic abilities. At the age of eighteen she started expressing herself on canvas using her left foot. In 1982, she was granted a scholarship by the Association. In 1988 she became full member of the AMFPA. From 1981 to 1995 she was the Chairperson of the Association of Mouth and Foot Painting Artists in Taiwan.