This study established psycholinguistic norms on Cantonese conceptual semantic features (CanFeat) with 954 concepts and semantic features, including feature frequency, sharing degree, and type of each feature. We provided concept-level variables, including participant count, feature counts (total, distinct, concept-specific, concept-shared), feature proportions, coverage, category labels (superordinate category and subordinate category), familiarity, and concreteness. We validated the reliability, specificity, and categorical structural consistency of the dataset through multiple analyses, including intra-coder reliability checks, gender comparability assessments, semantic category distinctions, and feature-level comparisons with established norms. We also compared CanFeat with norms in other languages, highlighting both similarities and differences. The present norming offers a timely and valuable resource for researchers in psycholinguistics, particularly those focusing on Cantonese production and semantic representation.