The product from bioreactor of peanut cotyledon are organ-specific, enrichment in content, orally taken directly, etc. these property made it a better bioreactor than others. This paper introduced current research background and future perspective in this area. Summarized the techniques need un peanut bioreactor. The key of peanut bioactor is construction of transformation vector. The promoters of major storage proteins are best choice for construction of transformation vectors. The promoter of glycinin genes from soybean can also be used in construction of transformation vector.