Two-year study on the pollination ecology of Eremurus inderiensis reveals that the florescence of eremurus is from the middle ten days of May to the first ten years of June, anthesis of a single flower lasts one day. When the weather is rainy and the highest temperature is less than 20 centigrade, anthesis of a single flower can last two days. Pollen dispersal period of single flower can last for 4 to 5 hours from 10:30 to 15:00 local time with the duration of pollen dispersal for single anther approximately 40min. The heterotypical maturation of 6 anthers could significantly prolong the pollen dispersal period of a single flower, suggesting an adaptation to the habitat of Eremurus inderiensis in the desert where the pollinators are uncertain. The main pollinators belong to Apidae, Halictidae, Syrphidae, Bombyliidae and Therevidae. Pollen/Ovule (P/O) reveals that Eremurus inderiensis is obligate xenogamy.