Abstract: A summarization performance evaluation method, and a summarization system sensitive to text categorization using the evaluation method is provided. The summarization system includes a database for storing the text to be summarized, a learning module which performs learning with machine learning in order to identify the categories and extract the summary of the text uploaded to the database, a categorization unit which identifies the categories of the text as a result of machine learning of the learning module, and is provided in the learning module, a sentence unit which summarizes the text as a result of machine learning of the learning module, and is provided in the learning module, a text summarization performance evaluation module for comparing the topic scores.