In order to explore the changes of soil labile organic matter(LOM)and carbon managementindex(CMI)inChinese rose with different growth years，four treatments with different growth duration as turfsoil(CK)，1～5，6～ 10 and 11～15 a was carried out. The soil highly(HLOM)，moderately(MLOM)and lowly labile organicmatter(LLOM)and carbon management index(CMI)were determined and analyzed. The results showedthat，the soil organic matter(SOM) and LOM content under 6～10 a treatment in different soil layers were the highest. Therein，at 0～20 cm，the SOMcontent was 12.9g/kg，and theHLOM，MLOM，and LLOM content were1.3，3.3，7.0g/kg，respectively；at 20～ 40cm，the SOM was 5.7g/kg，theHLOM，MLOM，and LLOM content were1.4，1.5，2.4g/kg，respectively，under the 6～ 10 a treatment. At 0～20cm，the CMI was increased with the plantingyears； at 20～40cm，the CMI was the highest one under 6～10 a treatment.Generally，the SOM and LOM content was increased in a certain period oftime，and which was the best one under 6～ 10 a treatment.