This study was undertaken to survey the usage of environment-friendly materials for 8 vegetable crops including cucumber, tomato, strawberry, eggplant hot pepper, lettuce, perilla leaves, and Welsh onion, cultivated under protected houses. Total of 78 environment-friendly growers in the Southern part of Korea were surveyed from 2003 to 2004. The number of materials used for a crop based on the effectiveness claimed by farmers was $21{sim}87$ for pest control, $0{sim}9$ for fertilizing, $2{sim}41$ for growth promotion and $10{sim}37$ for soil improvement. It is needed to clarify the ingredients and effectiveness of those environment-friendly materials reaching 323 items, on a science-basis in the future.