2,09). The implication of this research shows that mnemonic technique is effective to help students increase their vocabulary achievement. And application of this research is start from the researcher explain the material using mnemonic technique until gave the test to measure the students vocabulary achievement after taught using this technique. From these results, it is suggested to the English teachers to use an suitable technique in teaching English especially in teaching vocabulary, in this case using mnemonic technique since students have better achievement than before taught using this technique. The next suggestion to studens that they must study English seriously especially in vocabulary learning. It is also expected for further researchers to continue this research on other technique in vocabulary learning. " />