The effects of resource on text processing were investigated by manipulating two factors: The amount of available resource and the amount of required resource. The former was manipulated by the amount of concurrent task (the number of signals to be detected during text processing). The latter was manipulated by abstractness of texts to be remembered. The results showed that text memory (which reflected the degree of text processing) increased when the amount of available resource was large or when that of required resource was small (Exp. I). The effect of text-abstractness on text memory, however, was not found in propositions rated to be important. That is, the inferiority of the abstract text appeared in the propositions rated to be neutral or unimportant (Exp. II). One possible interpretation of this result is that processing resorce is distributed to propositions within a text according to their importance.