Root cultures of Angelica gigas Nakai were found to be sensitive to elicitation by poly-saccharide elicitors, such as methyl-$eta$-cyclodextrin, glucan, carboxymethyl-$eta$-chitin, chitosan, yeast extract and pectin. For the production of decursinol angelate, ca rboxymethyl-$eta$-chitin and glucan were found to be the most efficient elicitors. The e nhanced accumulation of decursinol angelate was proportional to the increase of the phenylalanine ammonialyase (PAL) activity after the treatment with most of the elicitors. However, carboxymethyl-$eta$-chitin treatment did not stimulate the PAL activity, despite the 1.6-fold increase in the decursinol angelate production.