Handheld alternating current detection device

The utility model relates to the field of current detection, in particular to a handheld alternating current detection device which comprises an insulating shell, a detection circuit board and an insulating telescopic rod, the detection circuit board is fixed in the insulating shell, and the end portion of the insulating telescopic rod is fixedly connected with the insulating shell. A power module, a current detection module, an analog-to-digital conversion module, a control module and an indication module are arranged on the detection circuit board, the current detection module comprises a Hall IC, the output end of the Hall IC is electrically connected with the input end of the analog-to-digital conversion module, and the output end of the analog-to-digital conversion module is electrically connected with the input end of the control module; the control module controls the indication module to give an alarm and indicate, when current exists in the line, an induced magnetic field exists around the line, the