This work was carried out to compare the growth performance at rearing stage betweenKorean native and imported chickens. One hundred eighty chickens were used in this work and dividedby strains (A, B and C) and sex (male and female). Three strains including 1 Korean native strain: A(Korean Native Yellowish Brown) and 2 imported layer strains: B (White Leghorn) and C (Araucana)were used to analyze the following traits such as viability, body weight at a different growing stage, averagebody weight gain, feed conversion ratio, and shank length at a different growing stage. The viabilitywas excellent in strain C to be more than 98% and was low in strain B to be 83.33% during a wholeweek. The strain A had a great performance on body weight during growing stages (p < 0.05). The shanklength of strain B was the highest value to 70.06 ± 8.48 mm at 20 weeks of age (p < 0.05). These resultssuggested that although the performance of Korean native chicken was less than those of importedchicken, Korean native chicken has own characteristics as a native livestock. And these results shouldprovide the criteria of performance for Korean native chicken.