The utility model provides a portable high-voltage wireless current detection device based on an arc-shaped laminated iron core, which comprises two open annular iron cores arranged on a high-voltagetransmission line lead, copper induction coils are wound on the two annular iron cores, and the side surfaces of the two annular iron cores are bonded together by epoxy resin. The annular iron core isformed by stacking arc-shaped amorphous alloy sheets, the opening L is smaller than the diameter d of an installed high-voltage transmission line wire, and during installation, the high-voltage transmission line wire is sleeved from the opening by means of the curling characteristic of the amorphous alloy iron core. The copper induction coil wound on the first annular iron core is used for takingenergy, and the copper induction coil wound on the second annular iron core is used for current detection. The device can be directly sleeved in a power transmission line cable by utilizing the curling characteristic and the opening electromagnetic characteristic of amorphous alloy, and is convenient to install, and the portable measurement of high-voltage current is realized by adopting circuitself-energy-taking power supply and wifi wireless data transmission.