The aim of this study was to examine the effects of salinity and light intensity on the chlorophylls, ?-carotene and protein contents in Dunaliella salina Teod. The algae were grown in inorganic medium containing 0, 0.9, 1.8 (control), 2.6 and 3.5 M NaCl under three illumination regimens [4500 (control), 9000 and 11000 Lux]. The results showed that most electrophoresis protein bands were separated in media with 1.8 and 2.6 M NaCl under continuous illumination with white fluorescent lamps at 4500 Lux and the most pigment contents were extracted in culture with concentration of 2.6 M NaCl under the same light intensity.