The purpose of this study was to investigate the effect of internal driver to the successful of implementation of GSCM practice by SMEs of furniture industry.  Thirty-five items were selected to test those relationship and ninety SMEs of furniture in Semarang, Kudus, and Jepara was chosen as a sample of this study.  Data was collected using self-administered questionnaire and personal interviews. The data collected was analyzed using Partial Least Square (PLS) with help of SmartPLS software. The result of hypothesis testing indicated that all of internal driver have significant positive effect on the implementation of GSCM practices by SMEs of furniture in Semarang, Kudus, and Pekalongan. The effect of knowledge on the implementation of GSCM practices is higher compare to the other factors (involvement and support from top management and employee, technology, and financial).