Information processing culture is presented as an integrative concept for representing the cultural aspects of organizational information processing, and its effects on organizational information processing effectiveness are investigated. Based upon a review of literature on organizational culture, the dimensions of information processing culture are drawn and validated empirically. It is found that information processing culture consists of two dimensions, information value perception and information processing rituals, the latter being further consisting of the volume of formal information processing, the structural support for information processing, and the degree of formalization for information recording and transmission. It is also found that information value perception has a strong effect on organizational information processing effectiveness. The implications of the findings are discussed.