In this work, phenolic acids were extracted from fruit and fruit juice samples by solvent microextraction technique. Extraction were done by 2.5 µL of hexyl acetate which is suspended from the needle tip of a 10.0 µL syringe. Cinnamic acid, o-coumaric acid, caffeic acid and p-hydroxy benzoic acid were used as the model compounds. The analytes were extracted from a 3- mL sample solution using 2.5 µL of hexyl acetate. The extracted phenolic acids were derivatized inside the syringe barrel using 0.7 µL of N,O- Bis (trimethyl silyl) acetamide (BSA) before injection in to the GC-MS. The influence of derivatization condition on the yield of in-syringe silylation was studied. Volume of 0.7 µL of BSA reagent at ambient temperature and a 10-min reaction time was used for in syringe derivatization reaction. Experimental SDME parameter such as selection of organic solvent, solvent volume, extraction time, extraction temperature, pH and ionic strength of the solution on the extraction performance were studied. The best extraction efficiency was obtained using 2.5 µL volume of hexyl acetate, stirring rate of 300 rpm, extraction time of 20 min, solution temprature of 22? C, salt concentration of 0.30 g mL -1 at pH=2.0 RSD %, dynamic linear range and detection limit of the method for all compounds are lower than 11.9%, 7-9984 µg L -1 and 0.6-164.0 µg L -1 , respectively. The proposed method was applied for the determination of phenolic acids in fruit and fruit juice samples.