Capacitive touch sensor and touch control terminal and anti-interference method and system thereof

The invention relates to the technical field of a touch sensor, and provides an anti-interference method. The method includes the following steps: a touch control terminal is judged if the touch control terminal enters into a charging state, if the touch control terminal enters into the charging state, then follow-up procedures are carried out; interference is detected; when an interference according with a first preset condition is detected, then a touch screen driving frequency is selected to trip off interference frequency. The invention further provides an anti-interference system, a capacitive touch sensor and a touch control terminal. The capacitive touch sensor, the touch control terminal and the anti-interference method and the system thereof detect interference after the touch control terminal enters into the charging state, when the interference fitting the preset condition is detected, the touch screen driving frequency is selected to trip off the interference frequency, so that influences to touch control operation by common mode interference generated when the touch control terminal is connected with a charger and charged can be reduced or eliminated.