The purpose of this study was to understand the effect of loyalty program in family and fastfood restaurant on relationshipquality (trust, commitment) and revisit intention. Based on total 394 samples obtained from empirical research, this studyreviewed the reliability and fitness of a research model using the Amos program. The hypothesized relationships in the modelwere simultaneously tested using a structural equation model (SEM). The proposed model provided an adequate fit to thedata, χ² 102.338 (df 48), GFI .959, RMR .049, NFI .970, CFI .984 SEM resulted that loyalty progam (β= .429, t=7.880,p< .001) showed a positive significant effect on trust, and that loyalty program (β= .455, t=9.532, p< .001) had a positivesignificant effect on commitment. Also, both trust (β= .450, t=6.595, p< .001) and commitment (β= .474, t=5.117,p< .001) had a positive significant effect on revisit intention. In addition, there were moderating effects related to restauranttype (family and fastfood restaurant) in terms of causal relationships between loyalty program, relationship quality and revisitintention. Limitations and future research directions are also discussed.