The utility model provides an embedded bearing detacher. The embedded bearing detacher is composed of a supporting frame and an operating platform. The supporting frame is a hollow frame. A section of cylindrical operating platform is arranged on the supporting frame, and two positioning grooves are symmetrically formed in the upper edge of the operating platform. The detacher is placed on the horizontal operating platform, a bearing to be detached is placed on the operating platform of the detacher, and it is guaranteed that a bearing lining boss and the positioning grooves of the operating platform are clamped. A disc is placed on the end face of an inner ring of the bearing and makes contact with the inner ring of the bearing by 360 degrees. A detaching tool is rapidly knocked through a sledge hammer, and the bearing is detached. The embedded bearing detacher is simple in structure, convenient to use, practical, stable in placement, even in stress, and capable of effectively avoiding damage of the bearing, shortening the detaching time and improving the operating efficiency.