A Gold color metal and enamel device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Or, on a pale Gules a double-warded key of the field, on a chief Azure three bezants each bearing a flame of the second. Attached below the shield is a Gold scroll inscribed "MEANS TO SUSTAIN" in Black letters.
Gold, combined with blue, is used for buff, the branch colors of Quartermaster, the original designation of the unit. The three gold roundels represent the three main groups of islands in the Ryukyus Archipelago. The wavy line represents the sea. The flames refer to battle fire or combat. The roundels and flames symbolize the Battalion's World War II service in the Ryukyus. Roundels also represent wheels and refer to the unit's mobility. The red central column stands for support. The key with two wards indicates that the Battalion provides both general supply service and direct support to combat units.
The distinctive unit insignia was originally approved for the 35th Quartermaster Battalion on 21 April 1964. It was redesignated for the 35th Supply and Service Battalion on 6 October 1966. It was amended to revise the description and symbolism on 16 September 1987. The insignia was redesignated effective 16 October 2006, for the 35th Support Battalion with the description and symbolism updated.