Kenya has experienced a rapid expansion of the education system partly due to high government expenditure on education. Despite this high level of expenditure on education primary school enrolment has been declining since 1990. 2003 when gross primary school enrolment increased to 104 percent after the introduction of F.P.E. the objectives of the study will be, to identify the relationship between the family economic status and academic performance of primary school pupils and to investigate challenges posed by family social economic status on academic performance of pupils in Soy Zone. The target population will include 40 teachers 60 parents and 150 pupils in primary schools in the zone the sample size will be 20% of the target population. This study will be based on motivation theory will adopt theoretical framework. The researcher will use questionnaire and as data collection instrument. Data collected will be analyzed using both quantitative and qualitative methods.