The main purpose of the present paper is to estimate the impact of electronic commerce on the growth of GDP and labor productivity. Using the growth accounting model and econometric techniques and developing cross-sectional data including industries with three digit ISIC codes, the effects of three types of measurements for electronic commerce including electronic purchase and sale, usage of Internet and usage of PC, the coefficients of regression equations/ models have been estimated. The results of the estimated models, which have included three measures and three regressions for each of the models, show that the impact of electronic commerce on the growth of GDP and labor productivity is insignificant.These results are compatible with those obtained from the other studies done about the developing countries. Although, electronic commerce in the developed countries has a positive and significant effect on economic growth as well as labor productivity, the same in developing countries, according to the empirical results obtained from different studies, is not true and the latter results show that the effect has been insignificant.However, with regard to Iran too, if we are to generalize the results obtained from the industrial sector to the whole economy, due to the fact that our country is in the readiness stage for electronic commerce, the obtained results can be justified.