The studies were based on panchromatic, color and color inflared photographs of a test area located in the municipality of Campinas - SP. The photographic flight was carried on by means of a scientific cooperation of IXPE - Instituto de Pesquisas Espaciais, NASA - National Aeronautics and Space Administration and I AC - Instituto Agronômico do Estado de São Paulo. The vegetation was classified in natural and cultivated. The natural vegetation was classified in forest, cerrado, clean field, field with shrubs; and the cultivated in coffee, citrus other orchards mature eucaliptus, immature eucaliptus pasture and annual cultures. The studies were made in circular samples 10 km², ramdonly orientated. The obtained data were used to evaluate the efficiency of the classification key and every type of photographs. For the studied region, the quantitative analysis led he following conclusions: a) For the utilized scale, the classification key showed a good efficiency, and can be used. b) The three types of photographs showed the same efficiency in the identification of natural vegetation c) The effeciency of color and color infrared photography was similar in the identification of cultivated vegetation, but superior comparatively to panchromatic photography.