On a white disc, edged with a blue narrow border, a red equilateral triangle, pointed down edged blue, bearing the bust of a Spartan warrior facing right, face and armor white, blue helmet, red plume, all detailed blue, all encircled by a white designation band edged with a 1/8 inch (.32 cm) blue border, with the inscription MOBERLY HIGH SCHOOL at top and SPARTANS at bottom all in red. The overall diameter is 3 1/2 inches (8.89 cm).

The colors and Spartan warrior represent Moberly High School. Blue symbolizes youth and red represents strength of character. The triangle is the strongest shape and symbolizes the strength of the Spartan Battalion and underscores the motto Spartan Strong.

The shoulder sleeve insignia was authorized on 14 August 2018. (TIOH Drawing Number A-10J-1233)

Red, white and blue are the school colors. The silver shield and checkered pattern allude to the swift thinking of Spartan Battalion cadets. The sword is a symbol of military readiness and is colored gold for excellence in operations. The motto Spartan Strong is inscribed upon a silver scroll to underscore the strength of the Spartan Battalion.

The shoulder loop insignia was authorized on 14 August 2018.