Purpose - The main purpose of the paper is to do literature survey of ERP Papers (from refereed and International Journals like Elsevier, InderScience, ASME, Springer and ACM( Digital Library) to find out the barriers of ERP when implementing it. Thus, the objective of the paper is to study the literature review papers and find out the barriers of ERP. Research findings of the paper: While implementing this ERP in an enterprise(s), it is found that there are obviously some barriers which need to be addressed. Out of 200 or so literature papers on ERP, 51 papers were reviewed for barriers and studied in depth. These barriers are mentioned in the form of Table in the literature survey. While implementing ERP, the barriers which are commonly observed are- huge capital incurred for software, poor planning or poor management, lack of perfection, lack of training and predetermined corporate goals, lack of good vendors, lack of risk assessment, lack of approach, lack of data models (support), lack of ERP Systems’ benefits, lack of system performance, lack of hierarchical attribute structure and lack of management support etc. Outline of the paper: The tool or methodology applied to overcome these barriers is AHP. It analyses the barriers (of ERP) and can help to solve the issues of ERP for its implementation. The results after overcoming the barriers and implementing it are excellent, found to be more productive for the enterprises. Keywords: ERP (Enterprise Resources Planning), Barriers, Software, System(s), Risk Assessment, AHP (Analytical Hierarchy Process)