India is growing in the medical world and patients from different parts of the world are coming to India for treatment. This is possible only when the hospitals are maintaining the standards. In the past few years, there has been great pressure to improve the quality of nursing care in India. Because nurses are integral part of the hospital and play a great role in patient care, a need is always felt to make improvement in nursing practice. To provide safe, competent care nurse needs to have clinical judgment, the right attitude, good communication skills, and knowledge regarding care. Through following the standards of accreditation, a nurse can ensure cost-effective care to clients as well as hospital value in the market also will be enhanced. METHODOLOGY A descriptive study to assess the knowledge and attitude of staff nurses regarding Quality Assurance of NABH was conducted 300 staff nurses were selected trough non-probability convenience sampling method to participate in this study. The tools used for data collection were proforma for personal variables to assess the sample characteristics, structured knowledge questionnaire to assess the level of knowledge and attitude scale to assess the level of attitude. All tools were validated by experts and reliability was established using split-half method for structured knowledge questionnaire and test-retest method for attitude scale and the tool was reliable. The pilot study was conducted and study is found to be feasible. RESULTS The analysis of the data was based on the objectives and hypothesis. Both descriptive and inferential statistics were used for data analysis. Findings of the personal variables showed that majority 198 (66%) staff nurses were in the age group of 22-30years, majority 225 (75%) staff nurses were females, majority 261 (87%) staff nurses have their qualification as GNM, majority 124 (43%) staff nurses were working in wards, majority 140 (47%) staff nurses have 1-5 years of working experience, majority 146 (47%) staff nurses were working as junior staff nurse, majority 169 (56%) staff nurses not attended workshop or conference regarding NABH. The study result shows that majority of the subjects 214(71%) have an average knowledge and majority of the subjects 175(58%) have the positive attitude regarding Quality Assurance of NABH. The study revealed that significant correlation between knowledge and attitude scores [r= 0.130, r (298) = 0.095 p>0.05]. Chi-square was computed and there is an association between the level of knowledge (χ2 (2) = 5.59, p>0.05*) and attitude (χ2 (1) = 3.84, p>0.05*) with their selected personal variables like educational qualification. DISCUSSION Sound knowledge and a positive attitude regarding Quality Assurance of NABH among the staff nurses is very important for improvement of quality patient care.