Behavioral emotion regulation and resilience are crucial in daily life. This research aimed to investigate the impact of the Incredible Years (IY) parenting program on behavioral emotion regulation and resilience in mothers of deaf children. The present study was a quasi-randomized controlled trial design. Twenty mothers between the ages of 28 and 41 years of age who had deaf children were randomly selected from Baghcheban deaf school in Shahreza, Iran. They were randomly assigned to experimental (n = 10) or control (n = 10) groups. The experimental group participated in the 12-session IY parenting program, while the control group did not participate in this program. Both groups completed the Emotion Behavioral Regulation Questionnaire (EBRQ) and Resiliency Scale (RISC) at pre and post-intervention. The data were analyzed using the Multivariate Analysis of Covariance (MANCOVA) test. The results showed that the intervention significantly and positively influenced behavioral emotion regulation and resilience in mothers of deaf children (p < 0.001). This study suggests that IY parenting program can promote behavioral emotion regulation and resilience in mothers of deaf children. Therefore, this program was feasible and acceptable to these mothers.