Information and communication technology (ICT) is important part of education system. The research question of the proposed presentation is:Does the achievement of 15 year old students is influenced by ICT resources in schools and intensity of ICT use at school and at home?The results obtained within three cycles of OECD PISA research program since 2000 are discussed.All data is obtained within the OECD PISA 2000, 2003, and 2006. Standard set of instruments (school questionnaire, student questionnaire and test booklets) has been used to obtain data from the representative sample of schools. Standard sampling procedures developd by consortium of responsible organisations for the OECD PISA research program were put into practice for the selection of participating schools (approximately 170 schools from Latvia participated in each PISA cycle). Data stored in international OECD PISA database have been used for comparative analysis. Data processing is performed by SPSS software.Expected outcomes are the following1) Overview of the results and main trends of implementation and use of ICT in education system of Latvia and comparative analysis of possible influence of ICT use on student achievement.2) Analysis of attitude, opinion, and concern of school principals regarding ICT role and its use in schools. OECD CERI (2001). Schooling for Tomorrow. Learning to Change: ICT in Schools. France, OECD Publications. Sweet, R., Meates, A. (2004). ICT and Low Achievers: What Does PISA Tell Us? In: Karpati, A. (Ed.). Promoting Equity Through ICT in Education: Projects, Problems, Prospects. Budapest, Hungarian Ministry of Education and OECD. Geske A., Grinfelds A., Dedze I., Zhang Y. (2006). Family Background, School Quality and Rural-Urban Disparities in Student Learning Achievement in Latvia. In: Prospects, vol.XXXVI, No.4 Grinfelds A.(2004). Issues of Education Strategy in the Questionnaires of School Principals and ICT Teachers in the IEA SITES Study. In: Humanities and Social Sciences. Latvia. Education Management in Latvia. University of Latvia, Riga.No.2(42), pp.38 - 46.Geske A., Grinfelds A., Kangro A. International comparative educational research in Latvia: current results and trends. ACTA PEDAGOGICA VILNENSIA, Vilnius University Publishing House, 2003, No.10, p. 67 - 84.