The specific objectives are as follows: to examine the concept and core elements of the fourth industrial revolution, the relationship between the fourth industrial revolution and psychological assessment in arts psychotherapy, and consideration of psychological assessment in arts psychotherapy. The key elements of the fourth industrial revolution are artificial intelligence(AI), cyber physical system(CPS) or internet of thing (IoT), and big data. Various techniques developed and utilized based on these elements will contribute to the psychological assessment development of arts psychotherapy. The advanced technology of internet of things or internet of all things that all information sources are connected based on artificial intelligence computer generates big date. The generated data is becoming more and more likely to be analyzed appropriately based on the data analytics. The development of these systems and technologies is likely to lead to a totally different activity in the area of psychological assessment among arts psychotherapy activities. In the era of the fourth industrial revolution, we also considered eight considerations for the development of psychological assessment in arts psychotherapy.