Public health is the art and science of averting the illness, promoting the protracting of life and promoting through the organized efforts of the society. The community health refers to the health status of the members of the community, to the quandaries affecting their health and to the totality of the health care provides for the community. Community health nursing is a synthesis of nursing practice applied in promoting and preserving the health of the population. Community health implicatively insinuates integration of curative, preventive and promotional health accommodations. The aim of community diagnosis is the identification of community health quandaries. Nursing and medical accommodations were reinforced to promote positive health. Now a day’s more accentuation is fixated on the sick to the well person, from the individual to the community. At present Public health nurses are called as Community health nurses who are registered nurses (RN) trained to work in public health settings. It includes nursing accommodations in all phase of health accommodations which is organized for the welfare of the community. In 1958 Indian Nursing Council has integrated Community health into fundamental curriculum in nursing. The main aims of the public health nursing are o promote health and efficiency. Obviation and control of diseases and disabilities of the patient and need predicated health care to protract the life. The primary focus of public health nursing is to promote health and obviate disease for entire population groups. This may include availing and providing care to individual members of the population. It withal includes the identification of individuals who may not request care but who have health quandaries that put themselves and others in the community in peril, such as those with infectious diseases. Public health nurses support the provision of direct care through a process of evaluation and assessment of the desiderata of individuals in the context of their population group. Public health nurses work with other providers of care to orchestrate, develop, and support systems and programs in the community to obviate quandaries and provide access to care. The key characteristics of the practice of the public health nursing are the assessment of population health utilizing a comprehensive, systematic approach, attention to multiple determinants of health, an accentuation on primary aversion, an application of interventions at all levels—individuals, families, communities, and the systems that impact their health. Public health nursing is a systematic process by which the health and the health care desiderata of a population are assessed to identity the subpopulation, families and individuals who would benefit from health promotion, the orchestration is implemented efficaciously ,efficiently and equitably and evaluations are conducted to determine the extent to which the intervention has an impact on the health status of individuals and the populations and the results of the process are habituated to influence and direct the current distribution of care. The systematic process is predicated on and is consistent with the community strengths, needs and prospects, current scientific cognizance, available resources and accepted criteria and standards of nursing practice and the participation, cooperation and understanding of the population. The designation “public health nurse” designates a nursing professional with inculcative preparation in public health and nursing science with a primary fixate on population-level outcomes. The primary focus of public health nursing is to promote health and obviate disease for entire population groups. This may include availing and providing care to individual members of the population.