This paper attempts to compare the availability, quality, similarities and differences of students' support services in United Kingdom Open University (UKOU) and Sri Lanka Open University (SLOU) and also to identify and enlist the deficiencies that SLOU students are facing in the student support services. To get the desired end four hundred students (two hundred from each university) were taken as sample and a thirty eight items questionnaire on (Likert Scale) was constructed and pilot tested, the reliability of the research tool was 0.957 (Cornbach's Alpha) after getting the data independent sample t-test was run by using SPSS XII. The study found out that student support services of SLOU are quantitatively developing rapidly on teh lines of UKOU. Though the media support services of both the instituions have almost the same status in the provision of student support services, yet the UKOU students have better services in general services, regional office services, tutorial services, guidance and counselling services and overall student support services. The conclusions lead to the recommendations that SLOU should improve student support services in all the parameters, but more emphasis should be given on guidance and counselling; library and modern communication facilities like toll free, auto answer may be provided at SLOU regional campuses.