Although most analysts agree that corruption has worsened since the advent of reform, this article argues that whereas the first stages of reform witnessed a quantitative increase in corruption, during the 1990s corruption underwent a qualitative change as high-level, high-stakes corruption increased more rapidly than other forms of official malfeasance. Drawing together data from the Party discipline inspection system, the state supervisory system and the judicial procuratorial system, the article examines in detail trends in forms of official misconduct broadly defined and corruption more narrowly defined as the use of public authority for private gain, charting not only overall trends in malfeasance and corruption but also trends in the number of “major cases,” cases involving senior cadres, and the amounts of corrupt monies. Its finding that corruption has intensified raises important questions about the efficacy of enforcement, the link between the deepening of reform and the intensification of corruption, and the economic consequences of intensification.