Background : Anemia is still one of the world's health problems, especially in developing countries. The prevalence of anemia in adolescents globally reaches 40-88%. In Indonesia, the incidence of anemia is still relatively high. The highest anemia was 57.1% in the adolescent age group. The aim of this research is to determine the difference between giving green bean juice and red guava juice on increasing hemoglobin in adolescents. daughter at SMP Negeri 2 Kledung.Methods : The design of this study is quasi-experimental with a pretest-posttest two-groups design. Sampling was done using non-probability sampling techniques. This study was conducted to determine the difference between mung bean juice and guava juice on the increase in Haemoglobin. The population in this study is 73 adolescent girls aged 12-14 years old, namely grade 8, and the sample of this study is 60 people. The target in the study is all adolescent girls aged 12-14 years, the place of research has been carried out at SMP Negeri 2 Kledung when the research has been carried out in September – December 2023.Result : The average Hb of adolescents before mung bean juice consumption was 12,273 with a standard deviation of 1.3292. The average Hb of adolescents after mung bean consumption is 13.783 with a standard deviation of 1.3383. The average Hb of adolescents before consumption of guava juice was 12.273 with a standard deviation of 1.3292. The average Hb of adolescents after consumption of guava juice was 13.783 with a standard deviation of 1.3383. The mean value in the mung bean juice group was 13,783 and the mean value in the guava juice group was 15,473 (p-value 0.000).Conclusions : There is a difference between the administration of mung bean juice and guava juice on the increase in haemoglobin in adolescent girls at SMP Negeri 2 Kledung.