| With the progress and development of society,adolescents enjoy better educational resources and material conditions,but at the same time,they also face greater psychological pressure.In 2020,the detection rate of depression among adolescents in China was as high as24.6%,and on 27 September 2021,the Ministry of Education issued the National Compulsory Education Quality Monitoring Programme,which included mental health in the monitoring of compulsory education,together with traditional main subjects such as language,mathematics and English,and society and The state attaches great importance to the issue of youth mental health.With the advancement and development of mobile internet APPlication technology,smartphones have become a necessity in people’s lives,and the development of various APPs has enabled smartphones to combine functions such as entertainment,learning and living.Therefore,for the increasing demand of psychological guidance for youth,it is important to rely on mobile internet technology to study the practice of APP interface design to provide psychological guidance services for youth groups and strengthen the construction of mental health.This paper introduces the emotion regulation theory in psychology to guide the interface design,and APPlies the five strategies of emotion regulation theory to the functional,interactive and visual design of the APP interface to design a psychological counselling APP for youth groups.The design is based on the theoretical basis of psychological guidance and interface design,and the collection and analysis of user needs is completed by using questionnaires,user interviews and user portraits.In the visual design,we adopted the interface design methods such as emotional version and component normalisation to design and standardise the colours,fonts,icons,layouts and components of the youth psychological guidance APP interface,and finally output the small interactive prototype,and conduct usability testing and evaluation,summarise and sort out the test results and propose optimisation strategies to provide users with a more enjoyable experience.Through the interface design of the Youth Psychological Guidance APP,we attempt to provide a convenient way for schools to control youth mental health,an effective way to guide and solve youth mental health problems,and a reference case for the society to design the functions and interface of the platform related to psychological guidance. |