Abstract: With the deepening of the reform process in rural areas and the deployment of Rural Revitalization Strategy, the construction of the rural social security system has become one of the important tasks in the rural work. The construction of the rural social security system from the perspective of land function are explored, the concept of land security function, land economic function and rural social security system are defined, and the relationship between the rural social security system and the rural social security system are analysed, and the alternative path and the problems to be paid attention to in the rural social security system under the trend of land function transformation are proposed.

Key words: land security function, land economy function, rural social security system