To improve rooting rate of Cerasus subhirtella var.pendula and study the mechanism of promoting rooting by electrostatic field,four treatments with 1.5,3.0,4.5,6.0 kV/cm of electrostatic field were set.The effects of different treatments of electrostatic field on rooting,functions of physiology and biochemistry of C.subhirtella var.pendula cuttings were studied.The results showed as follows:(1)The contents of soluble protein and soluble sugar in cuttings were significantly increased by electrostatic field with 1.5～4.5 kV/cm. The most effective treatment was 4.5 kV/cm,the largest growth reached 43% and 44.1% compared with the CK,respectively.(2)Enzyme activities of peroxidase (POD) and indoleacetic acid oxidase (IAAO) in cuttings were significantly increased and decreased by electrostatic field with 1.5～4.5 kV/cm,respectively.The most effective treatment was 4.5 kV/cm,the largest growth and reduction reached 58.9% and 17.5% compared with the ck,accordingly.(3)The number of root per plant,length of roots，fresh weight of root，root activity,cuttings survival rate were significantly increased by electrostatic field with 3.0 and 4.5 kV/cm.The most effective treatment was 4.5 kV/cm and the growth rates reached 127.4%,29.2%,88.9%,107.1%,116.3% compared with the CK,respectively.The above results show that contents of soluble protein,soluble sugar and the enzyme activities of the POD and IAAO in cutting of C.subhirtella var.pendula can be effectively regulated by suitable electrostatic field,and the cutting survival rate can be significantly improved.The optimal intensity of electrostatic field is 4.5 kV/cm.