Background: One of the common and important public health problems is failure to thrive in during childhood .The purpose of this study was to investigate the relationship between health belief model structures with mothers' performance in preventihg growth retardation in children aged 1-5 years in Shazand city in 2014.

Materials and Methods: In this analytical and cross-sectional study, 202 mothers with children aged one to five years in the Shazand city were selected by random sampling. The data were collected by using a researcher-developed valid and reliable questionnaire by self-report method. The questionnaire included demographic characteristics of the mothers, the maternal practice cheklist and health belief model dimensions. Finally, the data were analyzed by SPSS20 T-test, Chi-square, correlation, ANONV and regression.

Results: The mean age of subjects was 28.76±5.28 years and a mean age of children was 26.49±14.74 months. Most common level of education for mothers was diploma (76.7%). The mean score of mothers' behavior was 70.65. Among the structures, self- efficacy had the largest score(69.8) and external practice guide had the lowest (38.91). In regression analysis, for predicting behavior by health belief model stuctures, self efficacy, perceived benefits and barriers were main predictors of behavior that predicted 10% of behavior changes(R²=0.101).

Conclusion: The results of this study reveale that the design of educational interventions should be based on self-efficacy, perceived benefits and perceived barriers as the most important predictors of maternal behavior.