Purpose: This descriptive study aimed to identify the effects of purposeful and timely nursing rounds on patients' perception of the quality of nursing services and nurses' perception of nursing rounds. Methods: Intentional nursing rounds were conducted by communicating patients’ questions on pain, position, pump, potty, and possessions. A total of 144 nurses and 149 patients participated, and data were collected using self-report questionnaires. The independent t-test, x 2 test, and Wilcoxon’s rank-sum test were used to analyze the data with SPSS version 24.0. Results: Although intentional nursing rounds improved the nurses’ perception of nursing rounds, there was no significant difference. The nurses’ benefit had the lowest score (3.36), and the benefit of communication with patients had the highest score (3.79).Intentional nursing rounds significantly improved the patients’ perception of the quality of nursing services in the intervention group. Among the factors of empathy (Z=4.98, p<.001) related to the quality of nursing services as perceived by the patient, assurance (Z=5.50, p<.001), reliability (Z=4.43, p<.001), and responsiveness (Z=5.02, p<.001) significantly increased. Conclusion Intentional nursing rounds positively affected patients’ perception of the quality of nursing service. It is important to improve intentional nursing rounds to enhance nurses’ perceptions of them.