His published works include the translation of Bu-ston's Tibetan History of Buddhism (1932) in two volumes. He also translated the Uttaratantra or Ratnagotravibhaga (of Maitreya Asaṅga) from Tibetan and published it in 1932. Obermiller's other important work is the Sanskrit text and Tibetan translation of the Abhisamayālamkara, which he undertook as a joint venture with his teacher Shcherabatskoy and published in 1929. He also contributed papers to the Indian Historical Quarterly.