This paper investigated the causes, consequences and control of students' crises in public and private universities in Nigeria. Students' crises involve making protest by students' in pressing their demand on various issues with university authorities. In this regard, the study population comprised all the 81 universities in the country from which a sample of 9 universities (6 public and 3 private) was taken. Out of the 8400 members of staff and 5600 final year students in the public universities, 1460 respondents (850 members of staff and 610 students) were chosen. Out of the 2650 members of staff and 1400 final year students in the private universities, 635 respondents (420 members of staff and 215 students) were chosen. The method of selection was by stratified random sampling. The instrument used was a questionnaire while the data collected were analyzed using percentages, t-test and Pearson Product Moment correlation. The findings show that the level of students' crisis in public universities was high. One major cause of the crisis was the failure of university authorities to meet students' demands. Student's crises were found to be less in private universities than in public universities. One important reason given for this was the absence of students' unionism in private universities. The consequences of students' crisis were found to include loss of lives and properties and the disruption of university programmes. Based on the findings, it was then recommended that university authorities should imbibe the use of the dialogue strategy in controlling students' crises. (Contains 10 tables.)