Mehet-Weret was one of the images of celestial cow goddess. Her name means the great flood and she is depicted in a number of forms, which reflect a kind of relationship with her roles. She appeared to have no any center cult, but she was a popular goddess through ancient Egyptian history and her name continued to be used in the Greek Period. She was associated with many deities like, Hathor, Nut, Neith, Isis and Ahet. She had many characteristics and played many roles as a creator goddess, goddess of the sky and the role of her seven sacred words in the afterlife. Mehet-Weret was as the powerful image of the Milky Way.This paper aims to investigate the celestial cow goddess Mehet-Weret and analysis to some texts to subtract some points in order to better understand her roles, iconography, her titles, attributes and why she was considered an image for Milky Way. This paper employs a descriptive and analytical methodology.