In　this　paper,　we　study　the　representations　of　a　class　of　small　nonstandard　quantum　group　over　which　the　isomorphism　classes　of　all　indecomposable　modules　are　classified,　and　the　decomposition　formulas　of　the　tensor　product　of　arbitrary　indecomposable　modules　and　simple　(or　projective)　modules　are　established.　The　projective　class　rings　and　Grothendieck　rings　of　are　also　characterized.