Abstract: 【Objective】To analyze the potential risk of infectious agents during the elimination period of schistosomiasis in Lushan County of Sichuan Province and to provide prevention and control strategies for consolidation of schistosomiasis elimination achievements in mountainous areas. 【Methods】 In 2024, one to two villages with relatively severe epidemic situations were selected in the historically heavily endemic towships of Lushan County as monitoring sites to carry out monitoring for wild animal feces, domestic animals, wild rats, free-ranging dogs, local populations, and mobile people; follow-up monitoring for previously infected individuals was carried out in Caoping Village of Siyan Town. Statistical analyses were performed to assess the risks associated with infection sources. 【Results】 A total of 115 fecal samples from 13 species of wildlife were incubated, with zero positive. Blood tests were conducted on 492 cattle, 34 sheep, and 261 dogs, with zero positive.A total of 2520 rodent traps were set, capturing 67 wild rats with a capture rate 2.66%, and no positive wild rats were found upon dissection. The activity track of loose dogs was 2212 meters at the farthest, 236 meters at the nearest, and 744 meters on average; a total of 68 wild droppings were picked up along the way, with zero positive. Blood tests were performed on 3540 local population, yielding 39 blood-positive with a blood positive rate of 1.1%; fecal examinations were conducted on 193 individuals, with zero positive. . A total of 315 blood tests were performed on mobile population, identifying 1 positive with a blood-positive rate of 0.32%; one person received a fecal examination, with o positive. A follow-up survey of 505 previously infected individuals revealed 5 blood-positive cases with a positive rate 0.99%; fecal examinations were conducted on 15 individuals, with 0 positive. 【Conclusion】 In this investigation, no local or imported sources of schistosomiasis transmission were found. However, there were a wide variety and large number of potential sources of infection in the local area. It is necessary to actively explore the elimination of regional monitoring models, adaptively transform prevention and control strategies according to local conditions, achieve precise prevention and control, and consolidate the achievements of elimination.