Sedimentary structures have been playing an important role in indicating sedimentary environment and distinguishing sedimentary facies. Many scholars have carried out much work on the sedimentary structures induced by flow, wind, wave and tide, but few on ice structures developed during the progress of ice freezing and melting. In this paper, a special lacustrine shore ice slid structures have been studied for the first time, which are developed in a special weather condition and climatic background of Ulungur lake along the shore of Ulungur lake, Xinjiang. It can certainly be a useful tool for inferring climatic and environmental conditions.Methods:Based on a great amount of domestic and broad references and modern sedimentary study on the shore of Ulungur lake, we give the sedimentary characteristics of ice slid structure and its sedimentary microfacies in this paper. We also give the evolution stage of ice slid structure and the controlling factors in the formation process.Results:These ice slid sedimentary structures are approximately given a length of 10 m or more and width of 1~5 m. Just like the bulldozed sand, they were formed with three parts including head, side ridges and slid surface. A transversal sand dune was formed at the head and two parallel sand ridges at the boundary of the smoothly slide surface. 6 types of iceinduced physical sedimentary structures can be observed on the slid surface, which respectively are the molten sand ridge, melted ice mark, molten sand cone, molten water drop pit, icecarried tool mark and root flora. Ice slide structures are generated by floating ice when the ice was moving backward from the lake and then obduct onto the beach of the lake. Their geometry and scale are influenced by many factors, like strength of the wind, thickness of the ice, kinetic energy, scale of the iceraft, gradient of the beach, grain size, composition of the surficial sediments on the beach and the shore, etc. Forming processes of ice slid structures can be devided into 5 stages, including: ①lake ice breakingup stage; ②ice floating stage; ③underwater slid stage; ④outwater slid stage; ⑤iceout stage. Conclusions:Ice slid structures appear mainly in the subwater zone, the ice dammed zone, the ice active zone and the back ice zone of Ulungur Lake. They can be reconstructed by lake wave and the wind on land later, and then buried and preserved in the strata.