The theme of this paper is to examine anthropological status of primary school pupils anddetermine the possibility of conducting CROFIT tests in classes from 1st to 4th grades of primary school. The research was conducted on 52 students of Elementary School Donji Kraljevec in February and March 2015. and respondents were primary school students from 1st to 4th grade. The sample of variables consisted of 8 tests for motor skills evaluation, 3 measures for antropological characteristics and 3 tests for functional skills evaluation.The purpose of this paper is to determine reliability of CROFIT tests in school class, which would significantly affect the quality evaluation of motor skills of primary school students, and improve the quality of work within the physical and health education from 1 st to 4th grade of primary school. On the research and analysis of results we can see that students of 5th grades achieved better results than primary school students in two standardized CROFIT tests, while the differences in the results of modified tests aren’t great. Metric characteristics of standard and modified measuring instruments used in this study showed satisfactorily level necessary for the applicability of the tests in class teaching. Factor analysis were obtained two significant factors, factor of motor skills and morphological factor.