This study analysis sentence structure in the headlines of the online newspaper Radar Banyumas from the April 23-29, 2024 edition. The research focuses on identifying syntactic functions, roles, and categories in sentences to understand the grammar used by Radar Banyumas in conveying information. This study employs a qualitative descriptive method with a syntactic approach, and data is gathered through observation and documentation techniques. The analysis reveals two main types of sentence structures, namely simple and compound sentences. Ten instances of simple sentences and eight instances of compound sentences were identified. The syntactic structure is analyzed based on elements such as subject, predicate, object, and adverb, as well as syntactic roles such as agent, action, result, and location. This research aims to contribute to the understanding of sentence structure usage in mass media, particularly in online newspapers, which is valuable in linguistic and journalism studies.