The aromatic constituents in fruit and juice of yatay palm (Butia yatay(Mart.) Becc.) were extracted and analyzed by HSSE-GCMS and SBSE-GC-MS techniques.139 and 150 aromatic constituents were detected,79 and 82 chemical compounds which occupied 95.231% and 92.101% of total relative content were identified in fruit and juice of yatay palm respectively.The fruit contained esters (85.718%), alcohols (3.900%), hydrocarbons (1.614%), carboxylic acids(1.350%), aldehydes (1.009%) and ketones (0.593%), and the major constituent was ethyl hexanoate (58.062%).The juice contained esters (59.831%), carboxylic acids(10.556%), alcohols (9.653%), hydrocarbons (3.078%), aldehydes (2.684%) and ketones(1.841%),the major constituent was ethyl hexanoate (31.202%), too.