Increasing waste disposal and energy demand are a problem in the city today. Densification of biomass waste from sawdust and tree leaves into solid fuel briquette not only reduces waste reduction but can also be an alternative source. Raw materials and binders are two essential variables, among other important variables, presented in this article. Fish oil extracted from fish residues is a combustible binder with a high heating value. Investigations and experiments on the various mixing ratios between the tree leaves-sawdust, by keeping a constant amount of binder at 10% in mass of 4 kg from the tree leaves and sawdust to produce briquettes using screw press briquette machine, and the properties of each mixture are the goals in this work. In this study, eleven compositions of tree leave and sawdust from 0:100, 10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20, 90:10, 100:0 were investigated. The properties of the briquette included the values of density, impact resistance, water resistance, heating value, burning rate, energy density, moisture content, volatile matter, ash content, and fixed carbon, were evaluated. The experimental results showed that the average energy density of briquette is 6 times and 16 times greater than raw sawdust and tree leaves, respectively. Tree leaves and sawdust briquette with a mixing ratio of 30:70 had the highest heating value (22.15 MJ/kg), density (1.127 g/cm3), fixed carbon (20.18%), Volatile (76.52%), and low ash content (3.29%), and burning rate (0.93 kg/h). The results indicated that heating values and proximate analysis were not much different within the five samples. Besides that, water resistance tests were uncertified at a higher ratio of tree leaves.