The stability of 50 volatile organic compounds in three sampling devices was examined. Summa canister can be used for sampling 50 organic compounds. Teldar sampling bag can be used for sampling the compounds of boiling point <= 150 degrees C, Aluminum foil sampling bag can be used for the compounds of boiling point <= 60 degrees C. The adsorption ability of three sampling devices on organic compounds was negative linear correlation with boiling point of organic compounds. Absolute value of slope of absorption equation was the biggest for aluminum foil sampling bag, then for Teldar, the smallest for Summa canister.