Abstract: This thesis studied the effects of “Lv Yuan” organic fertilizer (Ecological organic fertilizer) different complex substrate on hot pepper growth. The result shows: The complex substrate of ecological organic fertilizer, vermiculite and turf (1:1:1), or ecological organic fertilizer and vermiculite (1:1) can improve growth of hot pepper. It mainly represent as follows: increasing plant height, stem diameter, leaf numbers and photosynthesis, making flowering and maturing earlier, biologic and economic yield higher. Ecological organic fertilizer blended with sand and slag can increase the Vitamin C content of hot pepper fruit. However it is not effective when only using ecological organic fertilizer as substrate.