The purpose of this study was to investigate the structural model ofthe cognitive domain learning hierarchy with the levels of achievement ofability in life experience of grade six students. The samples were 310students studying grade 6 primary school classes in the first semester ofthe 1997 academic year under the Amphoe Banphai Primary Education Office,Khon Kaen province. They were selected by simple random sampling technique.The research instrument was a multiple choice test on the cognitive domainlearning hierarchy with the levels of achievement of ability in lifeexperience of grade six students. The data were analysed through pathanalysis. The findings were as follows : Knowledge had both direct and indirect effects to evaluation.Comprehension had indirect effect to evaluation. Application had bothdirect and indirect effects to evaluation. Analysis had direct effect toevaluation. Synthesis had neither direct nor indirect effects toevaluation.