Applied psychology is an important branch of psychology which is developing rapidly. Because of people's needs in work and life, the related research fields of various topics have formed the discipline of psychology. Applied psychology studies the application of the basic principles of psychology in various practical fields, including industry, engineering, organization and management, market consumption, school education, social life, medical care, sports, military affairs, justice, environment and other fields. With the rapid development of economy, science and technology, society and culture, the prospect of applied psychology is more and more broad.

The basic premise of applied psychology is to use psychological principles and theories to overcome practical problems in other fields, such as management, product design, human factors engineering, nutrition, law and clinical medicine. Applied psychology includes not only the following fields: industrial and organizational psychology, court psychology and human factors engineering, but also educational psychology, sports psychology and community consciousness. The difference between basic psychology and applied psychology: in fact, their research categories have different performances. The former is mainly studied from the individual point of view, while the latter is analyzed from the class point of view. The collection of individuals constitutes a stratum, but it is often individual people who need to solve the confusion in real life. Therefore, from this perspective, there is an intersection between the two, and each field has its own unique side. So if you want to do research, you naturally need to study basic psychology first, and then you can continue to study applied psychology in depth. However, different schools have different attitudes towards the same problem.