The explosion in the number of Internet of Things (IoT) devices simply reflects how the growth of big data overlaps perfectly with the growth of the Internet of Things. With the advent of the era of big data, the continuous development of our country’s economy, and the continuous progress of society, the development of social work is also influenced by economic and social development and continues to go hand in hand, making corresponding contributions to the development of our country’s society. Meanwhile, the gradual imbalance between social development and economic development has put much pressure on social work organizations. The research on the social work development model has aroused the concern and discussion of some experts and scholars in recent years. In our paper, we aim to analyze the characteristics of social work models, the role of social work institutions, and the problems of social work models and combine them with qualitative research and quantitative research to make the questionnaire survey method. The results of the survey show that the effective percentages of “satisfaction” and “very satisfied” for “your enthusiasm for work” and “sense of accomplishment that your work brings you” are 68.0% and 58.7%, respectively. It can be seen from this that social workers have a strong sense of experience in the overall work when performing specific tasks.