The contents and physicochemical properties of fiber in 15 kinds of vegetables being consumed commoly in Korea were investigated, and the effects of various cooking and Kimchi fermentation) on fiber were studied. Contents of total pechin in raw vegetables were 0.89-2.75g/100g, and most were 1-2g/100g, on dry weight basis. Considering each fraction of pectic substances, the content of HWSP of vegetables ranged in 0.33-0.98g/100g, HXSP, 0.29-0.81g/100g and HCLSP, 0.30-1.40g/100g. HCLSP of three pectic fractions showed the greatest variation according to the kinds of vegetables. Every vegetables showed similar contents of three pectic fraction. Cooking decreased total pectin content in all vegetables regardless of cooking methods and the greatest reduction was observed in boiling. Among three pectic fractions, hot water soluble pectin(HWSP) increased, and sodium hexamtaphosphate soluble pectin(HXSP) and HCL soluble pectin(HCLSP) decreased.