In this work, direct and indirect solar drying parameters of two mango varieties were estimated and compared using direct and indirect solar dryers under the same meteorological conditions. For both drying methods, drying curves were established and fitted using 10 semi-empirical models, drying rate and drying efficiency curves were determined, effective water diffusivity was estimated and quality of dry slice was evaluated. Results showed that in indirect solar drying, the tray position in the dryer did not have an influence on drying curves whereas in direct solar drying this influence was very significant. Indirect solar drying curves were suitably fitted by Approximation diffusion model (with R2 «0.99, RMSE «0.0387, E< 12% and?^??" 5) while direct drying curves were best fitted by Verma and al. and Approximation diffusion models (with R^ O. 99, RMSE< 0.0276, E< 12 …