Aims: To evaluate the effectiveness of the hospital‐family holistic care model based on the theory of 'Timing It Right' in caregivers of patients with permanent enterostomy. Design: A prospective randomized controlled trial. Methods: One hundred and twenty‐five caregivers of patients with permanent enterostomy were recruited from 1 May 2017–31 August 2019. They were randomized into either intervention group (N = 62) or control group (N = 63).