In 2003, the R.O.C. Trademark Act amended Articles to accord with the minimum standard of TRIPS, like three-dimensional trademark, single color trademark and sound trademark. Next year, the Ministry of Economic Affairs promulgated and enforced ”three-dimensional, color and sound trademark examined basis into the statute.This note tries to introduce the category of three-dimensional trademark, including registration process and functionality. Even the cases happened in the United States and European are few, this note sill discuss the modern world circumstance and economical analysis for conclusion.