This paper seeks to examine Elizabethr Bishop`s poetry in terms of its use of rigorousness. Generally speaking, rigorous, strict or austere attitudes seem to be harmful to the creation of beauty. In most of the poems dealt with in this paper, Bishop begins with a meticulous observation on ordinary, familiar things in the world or routine human behavior and yet the results of the observation are totally different from our conventional, stereotyped impression of them; that is, her scrutiny creates exhaustive epiphanic moments from the things she looks at. Equally, since she investigates the things with aloofness and expresses herself only with images, her poetry does not sound intensified or explicit, thus never falling into sentimentality. It is quite true that her relentlessly cool, rigid stance toward things in the world leads her to consider the world as harsh, confusing, and sordid. Nevertheless, she shows the possibility that she is able to find in the midst of that world beauty and love, though it may be small and fragile. The aesthetics of Bishop`s poetry is based upon such an unusual combination of rigorousness and ingenuity.