Abstract： Objective To understand the growth and malnutrition status of Tibetan children aged 0 to 35 months in rural Lhasa in 2010.Methods Cross-sectional study and multistage sampling design were used to randomly select sampling units.A total of 640 children were studied.Height and weight were measured and nutritional status was evaluated with WHO reference in 2006 using Z-scores.Z-scores of weight-for-age( WAZ),Z-scores of height for-age (HAZ) and Z-scores of weight-for-height (WHZ) were analyzed.Results At the age of 18 -35 months,the children in rural Lhasa were 3.0 cm shorter as compared to the China national length reference.At the age of 6 - 11,12 - 17 months,weight ( ( 8.84 ±1.23) and (10.20 ±1.08) kg) and length((70.45 ±4.46) and (76.73 ±4.78) cm) of boys were significantly higher than girls ( weight:( 8.42 ± 1.30) and ( 9.59 ± 1.26 ) kg ; length:( 67.61 ± 3.98 ) and (.74.25 ±4.50) cm)(all P values ＜0.05).WAZ and HAZ were -0.17 ±1.11 and -1.11 ± 1.46,respectively.The HAZ of 18 -23 months children( -1.51 ± 1.24 ) was significantly different from the HAZ of 0-5,6- 11,12- 17 months children (HAZ:-0.75 ± 1.50,-0.83 ± 1.72,-1.07 ± 1.55,respectively) ( all P values ＜ 0.05 ),comparison with the HAZ of 24 - 29,30 - 35 months children ( HAZ:- 1.41 ± 1.25,- 1.24 ± 1.05 ),the results showed that there were no significant difference( all P values ＞0.05),HAZ of 18 -23 months children was the lowest.The prevalence of stunting,underweight,and wasting were 24.6％ ( 155/630 ),5.4％ ( 33/616 ) and 1.0％ (6/608),respectively.The malnutrition of boys was more serious than that of girls,the stunting of 18 - 23 and 24 - 29 months children had reached 35.0％ (36/103) and 29.1％ (25/86),respectively.Conclusion The growth and development status of children in rural Lhasa under 3 years old was poor,and the malnutrition of local children should not be ignored with variations by gender and months of age.