Objective To detect the serum D-Dimer and C-reactionprotein expression levels in essential hypertension patients and observe the correlation between both of them. Methods 40 young essential hypertension patients as observer group; and 40 persons without hypertension as control group. After taking the fasting blood, the serum level of D-Dimer and CRP was detected using electrochemiluminescence method. Simultaneously, the correlation of D-Dimer with CRP was tested using Pearson correlation coefficient. Results The serum level of D-Dimer and CRP was higher in young essential hypertension patients than those in the control group. And the difference was statistically significant (P<0.05). In 80 patients, the serum levels of D-Dimer and CRP were significantly correlated, and correlation coefficient r=0.71, there was significant difference (P<0.01). Conclusion D-Dimer and CRP are significantly increased in the serum of advanced young essential hypertension patients. And the serum level of D-Dimer is significantly correlated with the serum level of CRP in young essential hypertension patients. D-Dimer as an indicator of essential hypertension after review of the value worthy of further study.