The aim of this work is to determine lead level in Argentina raw propolis to assure the safety and quality of this product for marketing in national and international markets. For this purpose an anodic stripping voltammetry and bismuth electrodes prepared in situ on modified glassy carbon electrodes were used. The electrode modification was carried out with Nafion (NA) and multi-wallet carbon nanotubes (MWCNT). Nafion improves the detection sensitivity under certain conditions and increases the electrode's resistance [20]. On the other hand, MWCNT can enhance the electrocatalytic activity and minimize the fouling on the surface of electrodes [21]. In this study, a MWCNT/NA coated glassy carbon electrode was optimized for anodic stripping voltammetry detection of lead. Effect of potential interferences, such as zinc and copper usually present in raw propolis could be eliminated through the variation of experimental conditions. The method was tested successfully on propolis samples obtained from different localities of the Province of Buenos Aires,Argentina and the results were compared with those of inductively coupled plasma atomic emission spectrometry (ICP-AES).