The utility model relates to a double-source-barrel electronic releaser, which mainly comprises a screw rod transmission mechanism, an upper feed contact, an upper tamp connecting rod, a cold ball barrel, an upper releasing contact, a middle contact, a lower feed contact, a low tamp connecting rod, an isotope barrel and a lower releasing contact. The screw rod transmission mechanism mainly includes a bushing, a first spring, a ball bearing screw rod, and a screw rod nut. The screw rod nut is connected with one end of the upper tamp connecting rod on the upper feed contact, which is connected with the middle contact through the cold ball barrel and the upper leading contact. The middle contact is connected with the isotope barrel through the lower feed contact. The isotope barrel is connected with the lower releasing contact. The utility model has the beneficial effects that once running could release cold ball and isotope particles step by step; the device will automatically be cut off electricity after the released cold ball in place; changing the power supply could continuously release the isotope particles; isotope barrels in different volumes could be replaced; one part dismantled from the device could form a single-source-barrel electronic releaser. And the utility model has the advantages of convenient device dismantling, cleaning and maintenance.