v3.26.1
SCHEDULE OF COMPANY AND SUBSIDIARIES (Details)
 12 Months Ended
Sep. 30, 2025
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Oct. 19, 2022
Leishen Energy Group Holding Co Ltd Leishen Holding Hong Kong [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Nov. 25, 2022
Percentage of effective ownership 100.00%
Leishen Energy Holding Co Ltd Leishen Cayman [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Principal activities Holding company
Leishen Energy Group Co Ltd Leishen Hong Kong [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Feb. 11, 2010
Percentage of effective ownership 100.00%
Principal activities Purchase and sale of oil and gas professional equipment and instruments
ZJY Technologies Co Ltd ZJY Technologies [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Mar. 02, 2007
Percentage of effective ownership 100.00%
Principal activities Design and sale of oil and gas professional equipment and after-sales support, and oilfield digitalization and integration service
China Oil Blue Ocean Petroleum Technology Inc China Oil Blue Ocean [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Oct. 19, 2007
Percentage of effective ownership 100.00%
Principal activities Design and sale of oil and gas equipment and instruments, and engineering technology services
Leishen Energy Technology Nanjing Co Ltd Leishen Nanjing [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Sep. 27, 2022
Percentage of effective ownership 100.00%
Principal activities Purchase and sale of oil and gas professional equipment and instruments
Leishen Green Energy Technology Development Co Ltd Beijing Leishen Green Energy [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Jan. 29, 2018
Percentage of effective ownership 100.00%
Principal activities No business operations
Leishen Energy Technology Shandong Co Ltd Leishen Shandong [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Sep. 14, 2010
Percentage of effective ownership 100.00%
Principal activities Sales of oil and gas professional equipment and instruments
Leishen Energy Services Co Ltd Leishen Services [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Jan. 23, 2019
Percentage of effective ownership 100.00%
Principal activities No business operations
Sichuan Leishen Hongzhuo Energy Development Co Ltd Sichuan Leishen Hongzhuo [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Jan. 16, 2019
Percentage of effective ownership 100.00%
Principal activities Production, storage and transportation of natural gas (LNG/CNG)
Sichuan Huayou Huitong New Material Co Ltd Huayou Huitong [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation May 29, 2020
Percentage of effective ownership 51.00%
Principal activities Production and sales of bonded composite pipes
Xinjiang Breslin Oil And Gas Service Co Ltd Xinjiang Breslin [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Aug. 22, 2024
Percentage of effective ownership 100.00%
Principal activities Purchase and sale of oil and gas professional equipment and instruments, and sales of oil and gas engineering technical service
Lionize Engineering Technology Limited. [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Feb. 21, 2025
Percentage of effective ownership 100.00%
Principal activities No business operations
China Oil Blue Ocean Hydrogen Energy Technology Co.,Ltd. [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Aug. 05, 2025
Percentage of effective ownership 100.00%
Principal activities No business operations
Suqian Hanmo Energy Service Co..Ltd. [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Apr. 21, 2025
Percentage of effective ownership 100.00%
Principal activities Purchase and sale of oil and gas professional equipment and instruments, and sales of oil and gas engineering technical service
Lse Energy International Co Ltd [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Jun. 29, 2025
Percentage of effective ownership 100.00%
Principal activities No business operations
Lse Energy America Inc [Member]  
ScheduleOfCompanyAndSubsidiariesLineItems [Line Items]  
Date of Incorporation Aug. 14, 2025
Percentage of effective ownership 100.00%
Principal activities No business operations