This application provides a touch control screen, a screen module, and an electronic device. An end portion of a groove that is in a conducting layer of the touch control screen and whose component of length is greater than 0 on a y-axis is extended. This can reduce stress concentration at the end portion of the groove, thereby improving reliability of a capacitive touch control screen. In addition, the touch control screen in this application can be prepared simply by designing a pattern of a mask in advance. This features ease of operation and rapid deployment and is very practical.