The purpose of this research is to investigate the relationships between knowledge management, entrepreneurial skills, and innovation toward informal entrepreneur success. About 180 questionnaires were distributed randomly to micro and small food business owner within Klang Valley, and 150 questionnaires returned (83.33% response rate).The finding shows that innovation, knowledge management, and entrepreneurial skills have direct influence towards informal entrepreneur success in Klang Valley, Malaysia. The limitations of the finding only can be generalized to micro and small food business owner within Klang Valley, Malaysia. The findings are useful for future micro and small food entrepreneur or informal entrepreneur to be successful in their business. More training on knowledge management, entrepreneurial skills, and innovation should be in place to ensure micro and small food business success in the future. The most interesting finding from this research shows that the most important factor for informal food entrepreneur success is innovation followed by knowledge management, and finally, entrepreneur skills.