The invention relates to the field of computers, in particular to a microphone fixing device special for a computer. The device can be fixed to the edge of a table board and can also be fixed on a seat handle and a backrest, so that a problem that a support is not flexible to use is effectively solved. The device structurally comprises a pair of first U-shaped clamps with inward openings, whereinfirst fastening bolts are respectively downwards screwed on the upper surfaces of the first U-shaped clamps in a penetrating mode, and an arc-shaped support which protrudes outwards is fixedly arranged between the upper surfaces of the two first U-shaped clamps; a first sleeve which is in sliding fit with the outer surface of the arc-shaped support sleeves the arc-shaped support, and a second fastening bolt is screwed on the upper side wall of the first sleeve from outside to inside, an elastic clamp is arranged at the left end of the outer surface of the lower side of the first sleeve, the middle of a first coiler is fixedly connected to the left end of a second coiler, and a microphone is fixedly arranged at the right end of the second coiler. The device is simple to operate and convenient to use and is suitable for various places.