The foil-less diode electric beams is measured by using Faraday cup on the TPG700 generator platform. The results show when the diode voltage is low, the diode electric beams rising edge is slower. The diode electric beams rising edge is getting faster as the diode voltage increases. The diode current magnitude by the Rogowski coil measurement is in accordance with that by the Faraday cup measurement for intense magnetic field. When magnetic field is smaller than 1 T, the diode current magnitude by the Rogowski coil measurement is obviously bigger than that by the Faraday cup measurement. The Faraday cup can give accurate measurement on the front electric beams of foil-less diode.