Disturbance of organic materiao is a main factor effecting geochemical exploration in forest marsh landscape area for many years.This paper researchs perliminaryly into the disturbed principle of organic material to character of supergene-geochemistry. The result showing that organic material disturbed to character of supergene-geochemistry with absorbed elements directly and changed physicochemical condition of environment. And both of ways has relations closely. Researched conclusion explained better the varation of abnormal of chemical exploration as disturbance of organic material.