Abstract:The Waduo-Longgu area of Sichuan is geotectonically located in the Bayankala massif in the eastern part of the Songpan-Ganzi orogenic belt, and belongs to the Shiqu-Yajiang Li-Be-Au-Pb-Zn-Sn metallogenic belt (IV-11). Purpose: In order to discuss the implication of the stream sediments to the prospecting potential and direction in the Wado-Longgu district, Sichuan Province, . Method: we give detailed description of the regional metallogenic geological background and regional geological characteristics in this paper, based on which we systematically analyze the geochemical distribution characteristics of 23 elements of the 1:50000 stream sediments measurement of the Waduo-Longgu area, including Sn, W, Mo, Bi, Cu, Pb, Zn, Au, Ag, As, Sb, Hg, TFe, Co, Ni, Mn, Li, Be, Nb, Ta, Rb, Cs and Sr. Consequence: Li and Be are the main ore-forming elements，Pb, Zn, Au, Ag, W and Sn are the minor anomalous ore-forming elements in the area. Li-Be-Nb, Pb-Zn-Ag, Cu-As-Sb elements have good assemblage correlation, Li，Be and Nb are sparse ore-forming elements, showing the metallogenic specificity of pegmatite; Pb, Zn and Ag are sulphophile ore-forming elements, which coexist in many hydrothermal sulfide deposits. In Au-Cu-As assemblage, Au and Cu are intermediate-temperature elements, and often coexist in the porphyry-type and skarn-type Cu-Au deposits, in which Cu often occurs as independent mineral and Au exists in Cu mineral; As is an intermediate ore-forming element, with relatively strong migration ability, which can be regarded as indicating element for Au deposits. Conclusion: Based on the good combination of individual elements and the close relationship with minerals or metallogenic geological bodies, we delineate eight major ore-forming element assemblage anomalies of 1:50000 stream sediment measurements, including AS-1, AS-2, AS-3, AS-4, AS-5, AS-6, AS-7, AS-8; According to the metallogenic geological background and the discovered ore occurences or mineralization points, the study area can be divided into 3 rare metal prospecting areas, 3 lead-zinc-silver polymetallic ore prospecting areas, and 2 gold polymetallic ore prospecting areas. Among these areas, AS-1 and AS-6 comprehensive anomaly areas have the biggest potential to find granitic pegmatite-type lithium (beryllium-niobium-tantalum) mine. Significance: These anomalies pointed out the direction for further geological prospecting in the area.