Through the analysis of the determining the biological substantial content in three kinds of wild jujube, the results showed that to the solvable sugar content wild jujube S_1 was most prominent. The solvable protein content of S_1 was more prominent than S_2 and S_3;the coarse fiber content of S_1 was more prominent than S_2 and S_3;the vitamin C content of wild jujube S_1 was more prominent than S_3 and S_1 is more prominent than S_2;and the common acid content of S_3 and S_2 was more prominent than S_1.T...