This study examined the relevance of promoting institutional collaborations for capacity improvement among business educators in the tertiary education sector in Delta State of Nigeria. Three research questions guided the study. The study employed the descriptive survey research design. Purposive sampling technique was used to select a sample size of 105 business education lecturers out of 307 of them from four Colleges of Education in Delta State. A questionnaire titled: Promoting Institutional Collaborations for Capacity Improvement Questionnaire (PICCIQ), which contained 35 items and designed on a 4 point scale was used to collect data for this study. The instrument was validated by three experts of Business Education and Measurement and Evaluation from the Faculty of Education, Nnamdi Azikiwe University, Awka, Anambra State of Nigeria. Reliability of the instrument was determined through a pilot-test conducted by the researcher on the instrument, selecting eight academic staff in business education from two teacher education institutions in Anambra State. The result was found to have a reliability coefficient of 0.64 using the Cronbach Alpha Coefficient Measurement which indicated that the instrument was trustworthy to collect the necessary data for the study. Data collected were analyzed using mean score at 2.50 rating, standard deviation, frequency and simple percentages in order to answer the research questions. From the findings of the study, recommendations were proffered and among such recommendations included that: various education agencies such as NCCE--for college of education should make contributive efforts and encourage institutions to incorporate the practices of institutional collaboration for educators' capacity improvement. All the same, the agencies should liaison and connect with the Government in order to implement policy on institutional collaborations for academic staff capacity improvement, which also calls for effective strategies to be mapped out as means for achieving this course. All tertiary education institution leaders should avail themselves and include the lecturers in their institutions' opportunities of collaborating with other institutions as a means of capacity improvement. The leaders should also have an open mind towards adopting this practice.