Background: The increasing prevalence of overweight and obesity in children has posed some challenges in many countries. There is a relationship between parenting styles, parental feeding practices, and children’s nutritional status.Objectives: This study aimed to apply Authoritative Parenting style Model in children’s nutritional status.Methods: This research was a cross-sectional study conducted on 1000 parents selected by random cluster sampling. Parents who had primary school children aged 7 - 8 years in Bojnord, Iran, completed questionnaires related to the constructs of the model in 2016. Structural style="font-style:inherit;color:rgb(255,0,120);">Equation Model Model (SEM) analysis was used to test the fit of the model. CMIN/DF, GFI, IFI, CFI, PGFI, PNFI, and RMSEA indices were employed to check the goodness-of-fit.Results: Correctly completed questionnaires were collected from 294 dyads of parents. The mean age was 36.26 years (SD=±5.38) in fathers and 32.96 years (SD=±4.88) in mothers.232 mothers (80.5 %) were housewives and only 99 of them (34.4%) had university education. Most fathers were employee (115, 40%) or self-employed (111, 38.5%) and 120 of them (41.7%) had university education. The values of goodness-of-fit were obtained for CMIN/DF=4.6, GFI=0.91, CFI=0.93, IFI=0.92, PGFI=0.68, PNFI=0.77, and RMSEA=0.07. Nutritional knowledge e and attitude directly affected authoritative parenting style (b=0.21, P<0.001) and parental feeding practices (b=0.33, P<0.001) and indirectly affected children’s nutritional status (b=- 0.01). The authoritative parenting style construct had a direct effect on feeding practices of parents (b=0.54, P<0.001) and an indirect effect on children’s nutritional status (b=- 0.01). The feeding practices of parents construct also affected the children’s nutritional status directly (b=- 0.02, P<0.05).Conclusions: This study indicated that the use of this model in the children’s nutritional status can result in positive outcomes, and this model can make interventions more effective in this regard.