The utility model discloses a carving tool, particularly relates to an electric milling head for carving and particularly relates to a carving milling head for engraving intaglio calligraphy works. The milling head (1) is connected with an electric tool through a connecting rod (2) and forms a spherical shape or an approximate spherical shape, and the surface of the milling head (1) is provided with a vertical gear milling (3). The spherical milling head of the utility model mills out arc-shaped cross-section groove on a basal plate when rotating at high speed, patterns carved out in the mode has a stereoscopic effect, and particularly, when applied on calligraphy, the patterns can produce a special artistic effect that the patterns are intaglios when seen near and are similar to embossments when seen from far; in addition, the utility model has the advantages of simple structure, simple manufacture, convenient operation, etc.