This paper presented the effectivity of Fermented Plant juice in pechay plant. The study was conducted at Libertad, Banate, Iloilo. There were total of 5 treatment 3 replication laid out in Randomized Complete Block Design (RCBD) there are 3 replication with 5 treatments. The measurement of the width and counting the number leaves of the pechay were done every week. As to the result researcher found out that the higher growth the concentration of the Fermented Plant Juice, the higher growth of the pechay plant and the other levels of Fermented Plant Juice such as 50ml. Fermented Plant Juice are lesser growth as compared to 100ml. of Fermented Plant Juice. Therefore, the researchers recommend the Fermented Plant Juice to be used by farmers as fertilizer rather than using commercial fertilizer.