In order to solve a series of problems caused by continuous cropping of baby cabbage，field experiments were conducted to study the effects of planting baby cabbage under different rotations on soil chemical properties，fungal community composition and diversity.The rhizosphere soil of baby cabbage in different rotations was studied，the chemical property，fungal community composition and diversity of rhizosphere soil were measured and analyzed by Illumina MiSeq high-throughput sequencing technique in seven different stubble:Continuous Cropping of Baby Cabbage(CCC)，Previous Crop Broccoli(BMC)，Previous Crop Millet(MMC)，Previous Crop Onion(OMC)，Previous Crop Soya Bean(SMC)，Previous Crop Potato(PMC)，Previous Crop Green Onion(GMC).Soil chemical properties of rhizosphere soil after rotations were significantly different from that of CCC.The contents of total phosphorus，organic matter，ammonium nitrogen，nitrate nitrogen，total nitrogen，available potassium and EC in rhizosphere soil of all treatments were increased，except PMC，and there was no significant change in soil pH.The OTU number，diversity and richness index of rhizosphere fungi in SMC and MMC were significantly increased.The results of Fungal community composition showed that Ascomycota and Olpidiomycota were the dominant fungi at phyla level.The relative abundance of Ascomycota and Olpidiomycota was 64.8% ～ 81.3% of the total relative abundance，and the relative abundance of MMC was the highest，which increased by 23.4% compared with CCC.The Olpidium was the dominant fungi at genus level，and its relative abundance with MMC was significantly decreased by 65.2% compared with CCC.Correlation analysis showed that the contents of total nitrogen，available phosphorus and organic matter were the main factors affecting soil fungal community structure.Compared with CCC，the yield of SMC，MMC and GMC increased by 10.7%，10.4% and 10.1%，respectively.The principal component analysis showed that the MMC was the best rotation for baby cabbage.MMC can improve soil chemical properties，fungal community composition and diversity，and increase the yield of the baby cabbage，and providea certain theoretical basis for the selection of suitable stubble of baby cabbage.