This study aims to study and compare the properties of Briquette from Napier Grass and Vetiver Grass in the proportion of 1:1 using glue and cramming with heat or coldness of hydraulic crammer. After that, there was a study about fuel property according to 3 parts of ASTM standard: heat range, humidity range and the number of ashes. It was found that the heat range of Briquette from Napier Grass and Vetiver Grass was 5,893.28 and 5,540.11 cl/g, respectively. The humidity range Briquette from Napier Grass and Vetiver Grass was 4.78 % and 5.56 %, respectively. The number of ashes of the Briquette from Napier Grass and Vetiver Grass was 8.75 % and 11.91 %, respectively. According to the comparison of those two kinds of grass, it was found that Briquette from Napier Grass has high heat range, low humidity range and low number of ashes comparing to Vetiver Grass. The combustion proportion of the briquette from Napier Grass and Vetiver Grass was 3.33 and 3.69 g/minute, respectively. So, the best combustion proportion was Briquette from Napier Grass because of its high range of heat, low humidity range and low number of ashes which are the desired properties of a good briquette causing a good combustion proportion.