Micellar solution of nonionic surfactant n-dodecyloligo ethyleneoxide surfac-tant, decaoxyethylene monododecyl ether [CH₃ (CH₂) 11 (OCH₂ CH₂)₁₀ OH], C₁₂ E ₁₀ in D₂O solution have been analysed by small-angle neutron scattering (SANS) at different tem-peratures (30, 45 and 60^◦C) both in the presence and absence of sugars. The structural parameters like micelle shape and size, aggregation number and micellar density have been determined. It is found that the micellar structure significantly depends on the tem-perature and concentration of sugars. The micelles are found to be prolate ellipsoids at 30^◦C and the axial ratio of the micelle increases with the increase in temperature. The presence of lower concentration of sugar reduces the size of micelles and it grows at higher concentration of sugar. The structure of micelles is almost independent of the different types of sugars used.