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Abstract
This study examined the effect of accounting information system on Economic Development in Nigeria. This study was conducted in Anambra state with data from147 respondents from both private and public sectors which were randomly selected as sample size. Data were collected using questionnaire’s administration while descriptive statistics, Pearson Product Moment Correlation (PPMC) and Ordinary Least Square Regression method were used for analytical purposes with the aid of Statistical Package for Social Sciences SPSS, window 23. The findings showed that, there is a relationship between accounting information system and Economic Development in Nigeria as measured by economic planning, investment appraisal function, financial statement preparation, cost saving, fraud prevention, national income and budget preparation, financial services and adequate returns and reward were significantly positive with (r = 0.824**, 0.825**, 0.834**, 0.672**, 0.652**, 0.775**, 0.853** and 0.824**) respectively. The result also revealed that, accurate and reliable accounting information is significantly influenced Nigerian Economic Development with (R2 = 0.873, P <0.05). The study concluded that, accounting, not only contributes directly at the economic development of a country but also sustains the national economic planning by providing data and specific instruments. Keywords: Accounting information system, Nigeria Economic Development.