This study examined the relationship between administrative strategy by principals and their effectiveness in tackling disciplinary problems. Three research questions were asked and one hypothesis was raised and tested at 0.05 level of significance. Ninety-five randomly selected principals from Bayelsa State constitute the sample. The instrument for the study is made up of three parts-first part is biodata of the respondents; second part solicits information on administrative strategy, while the third part solicits information on disciplinary problems. It has a test re-test validity. The r-value for this instrument is 1.96. This measures internal consistency. The findings reveal a significant relationship between principal's administrative strategy and their effectiveness in handling disciplinary problems. It also shows that there is a significant relationship between Administrative Strategy and their assessment of students' behavioural outcomes. It was recommended that there should be re-orientation by way of counselling to fight against manifested disciplinary problems also there should be adequate provision of funds, instructional--Disciplinary committees should be set up by school administrators and orientation programmes organized which include campaign enlightenment strategies, seminars, etc as a tool in tackling indiscipline in schools.