The invention provides a single-grid control voltage current sampling device based on LIGBT. A cellular structure thereof comprises a first conductive type semiconductor substrate, a substrate electrode, an epitaxial oxide layer, a second conductive type semiconductor drift region, a second conductive type semiconductor doping area, a first conductive type semiconductor anode region, a first metalelectrode, a first conductive type semiconductor area, an oxide layer, a metal grid, a first conductive type semiconductor doping area, a second conductive type semiconductor cathode area, a first conductive type semiconductor doping area, a second conductive type semiconductor doping area, a first conductive type semiconductor cathode area, a third metal electrode, a fourth metal electrode, a fifth metal electrode, and a second metal electrode. The device can sample the current flowing through the device at a switch-on state, the detection on the anode voltage can be realized at the off transient, the current sampling and the voltage sampling are alternately performed, the sampling precision is high, and the sampling ratio is controllable.