Objective To discuss the application and significance of homocysteine (Hcy),renal function and serum lipid levels in renal transplantation,by testing those from patients after renal transplantation.Methods Hcy,creatinine (Cr),urea nitrogen (BUN),uric acid (UA),total cholesterol (TC),triglyceride (TG),low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C) were detected in transplantation group(n=63) and control group(n=60).Serum Hcy,Cr and BUN of transplantation group were continuously monitored before and 1,3,7,14 days after operation,and the relationship between Hcy and renal function before and after renal transplantation were compared.Results Compared with control group,Hcy,Cr and BUN in transplantation group all increased and the difference between two groups was statistically significant (P<0.05).Hcy,Cr and BUN in transplantation group all decreased after renal transplantation and the differences between two groups had statistical significance (P<0.05).Compared with that before surgery,Hcy,Cr and BUN in transplantation group gradually reduced 1,3,7 and 14 days after surgery,and the differences were statistically significant (P<0.05).Cr and BUN were positively correlated with Hcy (r=0.627,P<0.05).TC and LDL-C in transplantation group were higher than that in control group and the differences had statistical significance (P<0.05) while the difference of TG and HDL-C didn′t have statistical significance (P>0.05).Conclusion Hcy,Cr and BUN can be used as monitoring indicators of efficacy after renal transplantation,also which can be used to observe the incidence and severity of hyperlipidemia.