This study aimed at identifying the severe behavioral problems of Governance of Muscat's elementary schools' students in the Sultanate of Oman; and the effect of variables in manifesting these problems among students (gender, class level, parents' educational level, number of sivilings, child social status, and brith order in the family. The study sample comprised (240) male students and (245) female students distributed over (10) schools (5 males' and 5 females') according to layered random sample. The schools' teachers responded to a behavioral problems questionnaire prepared by the researcher. This questionnaire was a four-rating Likert's scale with the following grading values (severe problem, modest problem, light problem, no problem). It incorporated sixty six behavioral problems which were categorized in five fields: withdrawal behavior, aggressive behavior, hyperactivity, insurgence behavior, and non-social behavior. The results show that the severe behavioral problems are six withdrawal behaviors. Results of independent variables effects in relation to behavioral problems shows that: while male students suffer more than female students; second elementary class students suffer more than those at fourth and sixth elementary classes; further more students brought up by un-educated parents suffer more than those brought up by educated ones; also students originated from families with 7 number of sivilings (and more) suffer more than those originated from families of less than 7 individuals. The study, then, puts many recommendations for both psychological consultants and decision makers at Ministry of Education.