Shield
Per bend Vert and Buff, between a bend wavy Azure edged Or in chief an American Indian teepee Proper and in base, within seven mullets in pile reversed of the third, a sword erect, blade, hand guard and pommel of the fourth, grip Sable garnished of the fourth; on a chief Gules a stylized mountain range of the fifth edged of the fourth.
Crest
That for the regiments and separate battalions of the South Dakota Army National Guard: From a wreath Or and Vert, a coyote statant Proper.
Motto
PROELIUM SUSTINE (Sustain the Fight!).
Shield
Green signifies the prairie of South Dakota and the six original locations of the Battalion - Pierre, Sioux Falls, Flandreau, Milbank, Aberdeen and Mitchell. Buff represents the Bad Lands of western South Dakota. The American Indian teepee represents the earliest warriors of the plains and the unit's vow to protect and service the people of the state and country, reflecting the unit's appreciation and respect for all people and cultures. The wavy bend symbolizes the Missouri River, illustrating the location of the Battalion, in Pierre along the river. The seven stars, in the triangular position, convey the Battalion's accuracy to pledge support and follow the Army core values: loyalty, duty, respect, selfless service, honor, integrity and personal courage. The sword, the point of the blade up, conveys the "Warrior First" culture and commitment to excellence in all their endeavors. The chief denotes dominance. It displays the red background alluding to the sky during sunset indicating "mission accomplished" at the end of a campaign. The stylized mountain range symbolizes the Black Hills of western South Dakota, a prominent geographical feature of the state.
Crest
The crest is that of the South Dakota Army National Guard.
The coat of arms was approved on 5 October 2011.