E-Government implementation has many benefits and significant impact such as transparency, saving cost, improving productivity, quality of public services and competitive advantage in information era nowadays . Even significant impact and benefits could be obtained but in fact, most of e-Government project was failed. Based on research survey , the failure was very high about 85% and project success was only 15%. Researcher had identified list of success factors to avoid failure during e-Government implementation , resulting 55 success factors obtained by using meta-ethnography technique would be key success factors that should be fulfilled to gain success during implementation of e-Government. In this paper, the validity and reliability was tested to ensure the importance of each success factors. Research methodology used was survey based on questionnaire to obtain data by expert judgment to rate each success factors. In order to test and analyze the value of validity and homogeneity reliability in this research used Aiken approach. The result of research showed that the content validity of each success factors had value from 0.75 to 1.0 and homogeneity reliability had value from 0.67 to 1.00. It can be said that the items were significant. Based on these result, each success factors were valid and reliable as success factors that should be accommodated to ensure successful e-Government implementation.