The main purpose of this study was to investigate the relationship between Resources Allocation in Strategic Plan Implementation and Administrative Effectiveness of Principals of Secondary School in Akwa Ibom North-East Senatorial District in Akwa Ibom State, one research question was raised to guide the study while one null hypothesis was formulated and tested at .05 alpha level of significance. Descriptive survey design was adopted for the study. Population of the study comprised of 86 principals from the 86 public secondary schools in Akwa Ibom North-East Senatorial District. A sample size of 86 principals was used as purposive sample. Two questionnaires tagged “Resources Allocation in Strategic Plan Implementation Questionnaire (RASPIQ) and “Administrative Effectiveness of Principal Questionnaire (AEPQ) were used to elicit information from the respondents. The reliability coefficient of .83 for strategic implementation and .79 for principal’s administrative effectiveness were obtained. Mean, standard deviation was used to answer the research question, while Pearson’s products moment correlation was used to test the hypothesis. The study revealed that resources allocation in strategic plan implementation significantly relates to administrative effectiveness of secondary school principals. It is therefore recommended that Principals should be equipped with resources allocation skills through training in seminar, conferences and workshops, to be able to implement strategic plans in order to achieve administrative effectiveness in their respective schools. Government should formulate resources allocation policies based on budget that should be adhered to, when implementing strategic plans. It is also recommended that principals should create a conducive environment where the personnel will have a sense of belonging, provide a clear direc¬tion for all involved, (students, teachers, parents and entire community members) so as to support a continuous process of strategic plan implementation, in order to achieve administrative effectiveness.