With intensifying market competition and growing supply chain complexity, accounts receivable risks have become a critical factor affecting the survival and development of small and medium-sized manufacturing enterprises (SMEs). This paper analyzes the causes, types, and impacts of accounts receivable risks in manufacturing SMEs based on their management characteristics and regulatory frameworks such as the newly revised "Regulations on Ensuring Payment to Small and Medium-sized Enterprises". A comprehensive risk control system covering pre-emptive prevention, real-time monitoring, and post-event resolution is established. Practical implementation strategies are proposed through case studies, offering actionable guidance for SMEs to optimize accounts receivable management, reduce bad debt risks, and enhance capital turnover efficiency.