The major purpose of this study is to obtain the evident and visual structure of costume of priest with symbol through the Old Testament. Based on corroborative the Old Testament, this thesis analyzes the costume of priest. This compares Aaron with his sons. This compares the two onyx stones on the shoulder pieces with four rows of precious stones on the breastpiece. This compares the robe with the woven tunic. This era falls on about from the 15th century before Christ. The crafts men whom God have endowed with skill make the vestments. Due to the christian religion, the body was entirely concealed. The costume of priest were not only used as dignity but also grandeur. According to the Old Testament the colour of the costume has signified not only the colour sense but also important symbolic meanings. The priest wore, over undergarments, a woven tunic, and he wore over the tunic, a robe, an ephod, a breastpiece, a sash, using a turban as head covering. Gold, and blue, purple and scarlet yarn, and fine linen are used. Aaron and his sons must wear them whenever they enter the Tent of Meeting or approach the altar to minister in the Holy Place, so that they will not incur guilt and die.