NurseLine Journal Vol. 6 No. 1 Mei 2021 p-ISSN 2540-7937 e-ISSN 2541-464X EFFECTIVENESS OF MENTAL BASIC COURSE TRAINING HEALTH NURSING ON THE ABILITY OF NURSE TO CARRY OUT MENTAL NURSING CARE Nofrida Saswati 1 *, Isti Harkomah 2 1,2 Nursing Study Program, Harapan Ibu Jambi College of Health Sciences *e-mail: nofridasaswati@gmail.com BACKGROUND Clients with mental disorders are increasing from year to years, mental disorders include schizo- phrenia, depression, mental emotional disorders. Based on data from Riskesdas 2018 in Indonesia, the number of schizophrenia was 7%, increased from 2013, namely 1.7% (Kemenkes RI, 2013), in Jambi Province as much as 7%, it was found that the client did not routinely take medication as much as 51.1%. Data on clients with depression in Indonesia as much as 6.1%, only 9% who regularly take medication, in Jambi Province as many as 1.8. Clients with Mental Emotional Disorders in Indonesia were 9.8%, in Jambi Province as much as 3.6%. Data on psychosis or schizophrenia mental disorders in Jambi City were 7,36%, the highest number was in Sungai Penuh City, namely 19,81 per seribu (Kemenkes, 2018). The impact of the problem of this disorder is ABSTRACT Problems that occur in clients with mental disorders are not obedient to taking medica- tion, where clients who have finished undergoing treatment at the Mental Hospital are returned to their families but the obstacles found are that the role of nurses who hold mental health programs is not optimal in carrying out mental nursing care in either com- munity for the nursing diagnosis of mental, psychosocial and mental health disorders. Therefore it requires a family role related to treatment and care for clients with mental disorders. One of the programs to stimulate the role of the family towards clients with mental disorders is the training of BC-CMHN (Basic Course Community Mental Health Nursing) nurses. The research objective was to determine the effect of BC-CMHN training on the self-ability of nurses in implementing community mental nursing care in Jambi City. This research is a quasy experimental design with a pretest-posttest one group design. Respondents in this study were 20 public health center nurses who are responsible for mental health programs. Based on the results of the bivariate analysis using the dependent t-test that cognitive abilities before and after the intervention p val- ues (p =0.000). There is an effect of BC-CMHN training on the self-efficacy of nurses in implementing community mental health insurance in Jambi City, it is recommended that it be implemented at both the provincial and district or city levels to improve the quality of community mental health services. Keywords: BC-CMHN self-abilities very large, if not carried out accordingly, it will result in the client relapse, not being productive, hurting him- self, the surrounding environment so that it is not ac- cepted in the community. This BC-CMHN training is expected to be able to improve the self-skills of men- tal nurses (Yusuf, et.al, 2014). The implementation of BC-CMHN aims to reduce the risk of mental disorders and increase com- munity acceptance of mental health practices. CMHN's target is to provide nursing care to clients, families, groups and communities in a mentally healthy, psychosocial condition and experiencing mental disorders without involving the hospital (Videbeck, 2008). Community Mental Health Nurs- ing (CMHN) is an effort to realize mental health ser- vices with the aim that patients who are not treated in the community will get better service. The results of the study are the effect of BC- CMHN training using lecture, demonstration, and role