The utility model discloses a straight-strip-shaped cutterhead which comprises a cutterhead body. A plurality of cutter heads are stably arranged on the cutterhead body which is in a straight strip shape. A plurality of bearing positions and limiting structures are arranged on one side of the cutterhead body, wherein the bearing positions are distributed side by side and are used for containing the cutter heads, the limiting structures are matched with the bearing positions and are used for limiting the cutter heads, and the cutter heads are clamped into the bearing positions and are positioned on one side of the cutterhead body side by side. Due to the fact that the cutterhead body is in the straight strip shape, and the cutter heads are stably installed in the cutterhead body, the whole structure is simple, the size and the needed installation space are small, and installation is easy and convenient. The bearing positions, containing the cutter heads, inside the cutterhead body are formed inwards along the side edge of the cutterhead body, the guiding faces of the end portions of elastic clamping pieces are exposed on the two sides of the bearing positions, the cutter heads are embedded into the bearing positions in a horizontally pushing mode, the guiding faces of the elastic clamping pieces limit the cutter heads to enable the cutter heads to be stably positioned inside the cutterhead body, and a machine head of a numerical control machine tool can grasp and take the cutter heads to be receded conveniently.