NOVELTY - Preventing and treating crucifer club root comprises preparing nutrition pot; pouring root; and pouring root and spraying fertilizer: adding 60000 parts of water to 250 parts of tushifu three (all by weight) to prepare medical liquid, spraying fertilizer on surfaces of leaves of transplanting soil with 667 square meters area; adding 100 parts of tushifu one and 100 parts of cropping vaccine to 3000 nutrition pots (all by weight), mixing the tushifu one, cropping vaccine and water to prepare medical liquid, pouring roots of seedlings on transplanting soil with 667 square meters area.    USE - The method is useful for preventing and treating crucifer club root (claimed).    ADVANTAGE - According to prevention method, it uses biological preparation to substitute of chemical preparation; it can be carried out safely and conveniently with good preventing and treating effect for improving soil quality; it also can reduce use of farm chemical, purify air and protect ecological environment at the same time.    DETAILED DESCRIPTION - Preventing and treating crucifer club root comprises preparing nutrition by pot adding 100 parts of tushifu one and 100 parts of cropping vaccine to 3000 nutrition pots (all by weight), mixing the tushifu one, cropping vaccine and nutrition soil of nutrition pot equally, preparing the nutrition pot for breeding seedlings; pouring root: after transplanting seedlings, adding 3000 parts of tushifu one and 1000 parts of cropping vaccine to 180000 parts of water (all by weight), mixing tushifu one, cropping vaccine and water to prepare medical liquid, pouring root of seedlings on transplanting soil with 667 square meters area; pouring root and spraying fertilizer: adding 60000 parts of water to 250 parts of toshifu three (all by weight) to prepare medical liquid, spraying fertilizer on surfaces of leaves of transplanting soil with 667 square meters area; adding 100 parts of tushifu one and 100 parts of cropping vaccine to 3000 nutrition pots (all by weight), mixing the tushifu one, cropping vaccine and water to prepare medical liquid, pouring roots of seedlings on transplanting soil with 667 square meters area.