Abstract: Effects of different substrate ratio on growth and quality of potted coriander were studied with six substrate ratios of T1（peat∶vermiculite∶perlite=3∶1∶1），T2（peat∶vermiculite∶perlite∶organic fertilizer=6∶1∶1∶2），T3（peat∶vermiculite∶organic fertilizer=3∶1∶1），T4（peat∶vermiculite∶perlite∶organic fertilizer=2∶1∶1∶1），T5（peat∶vermiculite∶perlite∶organic fertilizer=1∶1∶1∶1）and T6（peat∶vermiculite∶organic fertilizer=2∶1∶1）were set to plant potted coriander by taking“big leaf coriander”as experimental material.Results showed that，growth indexes such as stem diameter，root length and root volume of potted coriander treated with T4 were better than those of other treatments，and fresh weight of whole plant was relatively big，which was 2.854 g.T4 had a maximum dry weight of whole plant was 0.384 g.Quality indexes such as soluble protein content，vitamin C content and chlorophyll content of T4 were also relatively high，which were 37.78，0.20 and 2.02 mg/g respectively.Therefore，substrate ratio of peat∶vermiculite∶perlite∶organic fertilizer=2∶1∶1∶1 was recommended for potted coriander.