The title of my project is called Wonderful Of Water Hyacinth.The purpose of our experiment was to compare the relation of braking power and the cost between the shockproof material which is made from water hyacinth processing by NaOH 1 mol/dm^3 , the shockproof material which is made from only water hyacinth and foam. The procedure involved making the shockproof material from water hyacinth. We boil water hyacinth and added with NaOH 3 tablespoons .Then, put in the model and put out in the sun.Finally, we experiment by release brick into shockproof material to find the braking power and repeated these steps for five time. The experiment was observed for one weeks. My data also concludes that the shockproof material which is made from water hyacinth processing by NaOH 1 mol/dm^3 more prevent from bumping than foam and the shockproof material which is made from only water hyacinth in order. The shockproof material made from water hyacinth processing by NaOH 1 mol/dm^3 cheaper than foam.