This study deals with the direct and indirect relationship between knowledge management and innovation using meta-analysis approach.The purpose of this study based on goal is descriptive and type of use sigma phi lambda merchandise is applied.The study population included 41 dissertations, theses and organizational identity research that of which 14 sample selected using non-random purposefully method for meta-analysis.
The identification reliability via the agreement of the referees in selecting the researches and their categorization, the coding reliability was obtained via the agreement of the referee on the use of specific concepts to opi march in uniform variables coding and significance and effect size reliability was obtained via an agreement on effect size calculation between two meta-analyzers.Findings showed that among 48 effect size, 18 effect size is high (higher 0.5), 17 effect size is low, and 8 effect size is medium.
Also results show that direct relationship between knowledge development, knowledge sharing, use of knowledge, knowledge keeping have higher effect size on innovation.