Background: Falls are responsible for a significant morbimortality related to the assistance in the hospitals and healthcare facilities. Among the prevention strategies, it is the worth emphasizing improvement in the patient’s perception about the risks of falling, since such perception has a direct impact in the adhesion to the preventive guidelines. Therefore, we aimed to analyse the impact of educational intervention in the perception of hospitalised patients about the risk of falling and associated factors. Methods: This study used the quasi‐experimental, pretest‐posttest design and results were presented according to the Transparent Reporting of Evaluations with Nonrandomised Design guidelines. This study was conducted in a Brazilian public hospital with 157 patients admitted to a medical clinic. The data were collected before and after educational intervention mediated by a booklet on fall prevention. It was identified the nursing diagnosis Risk of fall, and applied an adaptation of the Falls Risk Awareness Questionnaire scale. Results: The findings were presented according to the number of risk factors of the participants, and to define the groups, with lower and higher risk, a median of the analyzed risk factors was used, represented by five. Therefore, this value was used to dichotomize the data. The results showed positive effects of the educational intervention mediated by booklet in the perception of fall risks. The questions about advanced age, hearing problems, insecurity and fear of falling presented significant associations with perception improvement in both groups. Conclusions: educational intervention mediated by booklet is effective to promote improvement in the perception of risks of falling patients in hospital admission. Health education about fall preventions is effective for involving patients in the care process. Therefore, this evidence may support the planning of strategies to prevent falls inside hospital environments.