The invention discloses a toothbrush device for blind people. The toothbrush device is formed by bending in a n-shaped structure. An elongated slot is formed in the top of the toothbrush device; a first semicircular slot is formed in the front end of the elongated slot; a second semicircular slot is formed in the tail end of the elongated slot; the left side surface and the right side surface of the toothbrush device have elongated hollow structures; and two upwards folded positioning clamps are arranged at the front end of the bottom of the toothbrush device. During use, a toothbrush extends into the toothbrush device; a user closes the left side surface and the right side surface of the toothbrush device in a kneading manner by a hand, so that the toothbrush device clamps the toothbrush; a toothpaste pipe head extends into the front end of the elongated slot in the top of the toothbrush device; when the toothpaste pipe head reaches the first semicircular slot, the moving of the toothpaste pipe head is slightly blocked, and a toothpaste pipe is started being extruded; furthermore, the toothpaste pipe head is continuously moved to the tail end along the elongated slot, so that toothpaste can fall onto brush hairs of the toothbrush under the elongated slot; when the toothpaste pipe head reaches the second semicircular slot, the moving of the toothpaste pipe head is blocked again, and the toothpaste pipe is not extruded; and the toothpaste pipe head is moved out of the elongated slot, so that the toothpaste is retained on the toothbrush.