We studied a phenomena of spontaneous current generated from laser plasma, which was produced from several plane target made from Rh, Ag and Cu irradiated with high power laser light. The pulse-width, output energy and wavelength of the laser were 200 ps (FWHM), 0.1-4J and 1.06 μm. respectively. At the focus spot of the target irradiated with laser, a spontaneous current density as high as 107A/cm2 was found in the experiment.