Introduction: Environmental attitudes and behaviors in people can change positively or negatively, especially in times of social isolation in the face of the COVID-19 pandemic. Objective: Describe the attitudes and their relationship with the environmental behaviors of relatives of nursing students in the face of COVID-19. Methods: A quantitative, relational, cross-sectional and analytical study, considering a population of 424 relatives, whose sample selected in nonprobabilistic sampling for convenience was represented by 246 units, a virtual survey was applied through the google form, using questionnaires prepared by Rivera, M. & Rodríguez, C. with validated Lickert-type scales of environmental attitudes and behaviors (8 and 12 items and a reliability of 0,793 and 0,651 respectively), both variables were measured as adequate and inadequate. Processing the data in the Statistical Package for the Social Sciences program version 25 and the non-parametric Chi Square statistical test. Results: 44.72% are between 20 and 29 years old, 51.22% are female, 58.94% are single; 58.13% presented adequate attitudes and 63.82% inappropriate behaviors (p = 0.002); the attitude with the highest frequency was: The increase in contamination could be harmful to health (77.23%) and the behavior with the highest frequency was: Closing the water pipe while brushing teeth (81.71%). Conclusions: Most of the family members show adequate attitudes, but it is not demonstrated in their behavior of caring for the environment, which warrants more environmental education.