A touch detection method is performed by a controller of a touch sensor of a capacitive type including sensor electrodes. The touch detection method includes acquiring detection values at crossing positions of the sensor electrodes, acquiring capacitance values for the crossing positions, calculating difference values for the crossing positions, each of the detection values being obtained by subtracting the moving average for one of the crossing positions from one of the difference values for the one of the crossing positions, acquiring a maximum value among the detection values at the crossing positions, determining a first threshold value by subtracting a subtraction value, which is a fixed value or a value that decreases as the maximum value increases, from the maximum value, and deriving a position of the indicator based on the detection values at the crossing positions with reference to the first threshold value.