In the era with the advanced technology, smartphones provide people with great convenience, but also lead to the problems of cell phone addiction to modern people. Our group perceive college students and workers are the two major groups who spend vast amount on using smartphones. Therefore, by distributing questionnaires, we aim to investigate and compare the different smartphone usage behavior between college students and workers. From our study, we deduce two facts: one, college students spend more time on using smartphones than workers do, and mainly use apps for entertainment. Two, college students, as the ones in the younger generation, have their own trend and common use, which can be clearly found in the social media they use and their ways of texting messages to others.