Fuse holder of fuse for switch device

The invention relates to a fuse holder (1) of a fuse placed in a switch device. According to the fuse holder, the current is cut by using the fuse with flow of current. The fuse comprises two sheet-like contact pieces, and a fuse body is arranged between the two contact pieces. The fuse holder comprises a bottom (2). Two side arms (3) extend from the bottom (2) and are perpendicular to the bottom (2). A U shape is formed by the bottom (2) and the side arms (3), and the two side arms (3) are provided with a contact surface (4) respectively. The contact surfaces (4) face each other, pressure is loaded to the contact pieces which are between the contact surfaces and lean against the contact surfaces, and the fuse holder comprises a fixed contact (5b) which is placed on the other side of the bottom (2) and is used for connecting current. The fuse holder is characterized in that the fuse holder (1) is designed to be one piece, and the outer side (7) of at least one side arm (3) is provided with a cooling piece (8) away from the contact surface (4).