The research is intended to synthesize zeolite from Silica sol H-ZSM-5 –( LUDOX HS-30 colloidal silica, 30% wt SiO2 ). As the silica source on synthesis by studying the effect of the various variables of H-ZSM-5 zeolite synthesis. As the silica source on synthesis by studying the effect of the various variables of H-ZSM-5 zeolite synthesis include the temperature at 60, 90, 110, 130° c , The rate is 20:1. By studying the physical characteristics and the time spent in the process hydrothermal. From trial found that condition is appropriate synthesis zeolite H-ZSM-5 is the temperature at 90° c, the time required for 15 days.