As an emerging force in the entertainment field of the new media era, the rise and development of Chinese mini web dramas are the result of the interweaving of multiple factors, with profound social, cultural and technological changes underlying them. They provide the public with a self-isolated heterotopia that breaks away from the "heavy reality", featuring high plot density and excitement. Against this backdrop, this paper approaches from the perspective of psychoanalysis, takes Lacan's "pleasure" theory as the theoretical framework, divides the development process of mini web dramas into three stages: the initial trial stage, the middle-term exploration stage and the current quality improvement stage, analyzes the consumption practice of mini web dramas under the "pleasure" theory, and further dissects the phenomena of racing production under the "fast-food mode" and consumption alienation under the generalization of commodity logic in the mini web drama industry, so as to provide theoretical support and practical inspiration for the innovative development of the mini web drama industry.