Secondary switch control method for electric tool

The invention discloses a control method for a secondary switch of an electric tool. The control method comprises the following steps that 1, a primary starting unit and a secondary starting unit are arranged on the electric tool; the primary starting unit and the secondary starting unit are connected with the electric tool control unit; 2, a first-stage starting unit detects whether a handle of the electric tool is held by a hand or not; if the first-stage starting unit detects that the handle of the electric tool is held by the hand, the fourth step is executed; if not, entering the step 3; thirdly, the electric tool cannot be started; 4, the second-stage starting unit detects whether the electric tool switch is turned on or not; if an electric tool switch starting signal is detected; if yes, starting the electric tool; otherwise, starting cannot be performed; according to the electric tool, the first-stage starting unit and the second-stage starting unit are arranged, when the first-stage starting unit and