Abstract: The current economic situation in Ukraine, complicated by the challenges of martial law, institutional instability, and digital transformation, necessitates a systematic reconsideration of approaches to achieving sustainable development in the agricultural sector. One of the key instruments for implementing this strategy is corporate communications, which integrates internal management processes with external stakeholder engagement based on transparency, adaptability, and responsibility. The urgency of the research stems from the need to establish a new quality of managerial interaction in agribusiness that supports long-term resilience and social efficiency. The purpose of the study is to develop a theoretical and methodological foundation for corporate communications, grounded in an interdisciplinary management approach and adapted to the specific conditions of agricultural production and the institutional environment of Ukraine. The article analyzes current academic research in the fields of business communication, strategic management, and sustainable development, revealing the fragmented nature of existing studies on the agrarian context and identifying a scientific gap that needs to be addressed. Underexplored areas include the integration of corporate communications into agribusiness sustainability strategies, stakeholder engagement (particularly with rural communities and government institutions), the use of digital tools for effective information exchange, and the development of social capital as a basis for trust in agricultural enterprises. Accordingly, the aim of the research is to systematize and enhance theoretical and methodological approaches to corporate communications as a critical factor in achieving sustainable development in Ukraineʼs agricultural economy. The article provides a multi-level analysis of the economic nature of corporate communication, its functional load, and managerial role. Theoretical approaches to designing communication systems within enterprises (resource-based, process-oriented, institutional, and integrated) are examined, with key tools and possibilities for adaptation to the agricultural context detailed. An original table is presented to compare methodological approaches and practical examples of their application in agribusiness. Special attention is given to barriers that hinder the implementation of communication strategies in Ukrainian realities, including digital inequality, human resource limitations, and a general undervaluation of communications as a management resource. The findings suggest that effective corporate communication in the agrarian sector is essential for ensuring socio-economic resilience, strengthening competitiveness, enhancing institutional openness, and integrating enterprises into global markets. Further research directions include the development of quantitative tools for evaluating communication effectiveness, exploring communication culture in agricultural practice, addressing digital barriers, and adapting corporate communication strategies to align with the Sustainable Development Goals (SDGs).