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Branched CdTe nanocrystals with zinc blende structure were directly synthesized in the early growth stage at a high initial concentration of cadmium precursor and a high molar ratio of Cd precursor to Te precuesor.Activation of the cadmium precursor by octadecylamine was found to be critical for the formation of branched CdTe nanocrystals.Furthermore,these as-prepared CdTe nanocrystals can evolve into nearly monodisperse dots through Ostwald ripening and still keep strong photoluminescence.These results manifest a new route to synthesize branch- and dot-shaped CdTe nanocrystals with zinc blende structure.