The present invention relates to a blender, and more particularly, to a blender capable of sterilizing and blowing drying inside a blade and a container by having a UV LED and a blower blade. A blender having ultraviolet sterilization and blowing drying functions according to the present invention includes: a main body having a container coupling groove recessed in the upper center thereof; A container having an open upper part and a lower part coupled to the container coupling groove of the main body, and equipped with a knife blade for crushing food ingredients in the lower part of the inside; A container lid covering the upper opening of the container; A first coupler provided inside the container coupling groove of the main body and having a lower portion coupled to the motor shaft of the driving motor built into the main body; A second coupler having an upper portion coupled to the blade and a lower portion coupled to the first coupler; A UV LED provided on the inner bottom surface of the container coupling groove of the main body to irradiate ultraviolet rays upward; A blower blade formed outside the first coupler; It is provided on one side of the inner side of the main body, and includes a blade sterilization drying unit for sterilizing and blowing dry the blade separated from the container and accommodated in the main body with ultraviolet rays.