A touch control system is provided and connected to a display surface, including a stylus and at least two sensing devices. The stylus includes a housing, a first opening, a second opening, a contacting member, and a reflecting member. The housing has a first end and a second end opposite to the first end. The first opening is formed at the first end. The second opening is formed between the first end and the second end. The contacting member protrudes from the first opening. The reflecting member is disposed in the housing, situated between the first opening and the second opening, and connected to the contacting member. When the contacting member contacts the display surface and moves along a direction from the first opening toward the second opening, the reflecting member is exposed to the second opening and reflects a light signal emitted from the sensing devices.