The study titled “impact of marketing research activities on the financial service and delivery in Nigeria bank” seek for further enlightening the ways and how banks have been able to use various marketing tools to market its service. This research work also deal with making appropriate for sound decision making. The marketing research result, collection of the information, and suggestion that could lead to the marketing as performances of business activities that direct the flow of goods and services from producers to consumer in order to satisfy consumers. That marketing is identify the most profitable markets now and in future, setting business development goals and making plan to meet not just in he banking industry alone. Marketing research is the investigation and idealization of information from all available source and its adoption to banks marketing needs.