In nearly 40 years since China's reform and opening-up, Guangdong province has experienced continuous economic growth, reaching high levels of production. Urban and rural development has also seen gradual growth, but the income gap between urban and rural residents has gradually increased. In the initial phase of reform and opening-up, rural and urban development was not adequately supported through limited policies and financial assistance for farmers. As Restructuring and liberalizing policies continued, China's economic reconstruction made significant progress, and the income gap between urban and rural areas deepened. With the advancement of China's economic level, Guangdong province has experienced increased economic development, but the income disparity between urban and rural areas has continued to grow gradually. However, in recent years, the income gap between rural inhabitant and countryside resident in Guangdong province has not increased at the same rate as in the past, although this gap persists. This paper analyzes the per individual expendable income for urban and countryside inhabitant in Guangdong province from 2010 to 2020 as an indicator.