Na-P1 Zeolite was synthesized from Scorias, which are found in several places of Cheju Island. Experimental parameters such as temperature, alkali concentration and reaction time were controlled to find out the best condition of zeolite synthesis. SEM, EDX and XRD techniques were empolyed to characterize the synthesized product. Na-P1 zeolite was obtained by using a 1-2 M NaOH solution at 100-120℃. The results were compared with pure Na-P1 zeolite synthesized from water glass, sodium aluminate and water.