Our company relies on Tianjin Jialiming Earthworm Breeding Co., Ltd. (a 36 year enterprise in the earthworm industry) and Tianjin Minsheng Bioengineering Co., Ltd., and has its own earthworm full industry chain group business model company. It is a national high-tech enterprise with a deep processing capacity of over 1000 tons for domestic earthworms; Tianjin Excellent Enterprise in Food Safety and Quality; The storage capacity of frozen earthworms is the highest in the Guinness World; CCTV conducted six interviews and broadcasted public welfare promotion programs; It is the initiator and advocate enterprise of organic earthworms in China, and the local standard setter enterprise of "Earthworm Breeding Technical Regulations" in Tianjin. Lumbricus protein and Lumbricus protein peptide food raw materials have obtained the qualification of "FDA filing in the United States" and are the undertaking unit of the "Academician Expert Workstation Project" in this industry; It is the first council member of the Chinese Medical Dietary Therapy Integration Alliance; It is the chairman unit of the National Earthworm Industry Alliance. 

Introduction of the Chairman

Jia Liming, an expert in the research and development of Earthworm Biology, is the founder of Earthworm Biotechnology (Tianjin) Co., Ltd. He started his entrepreneurial journey in 1982 and has been focusing on earthworm breeding, processing, extraction, and industrial development since 1991. He has built a complete industrial chain integrating earthworm breeding, deep processing, technology research and development, and market sales. We have successively formulated three enterprise standards, local standards, and group standards: "DB12T1048-2021 Earthworm Breeding Technical Regulations", "DB12T-1285-2023 Earthworm Breeding Biological Treatment Technical Regulations", "Technical Specifications for Ecological Recycling of Crop Straw", "Enterprise Joint Standard for Earthworm Breeding Technical Regulations in Beijing Tianjin Hebei", "Technical Specifications for the Application of Earthworm Protein in Food and Health Products" led by our company in 2025, "Guidelines for the Application of Earthworm Protein in Cardiovascular and Cerebrovascular Nutritional Intervention", "Guidelines for Non Drug Intervention of Metabolic Diseases", and participated in two completed national standards.

The qualifications of the company

Standardized production workshop

Building the foundation

The application of earthworm protein in the food industry hinges on quality as the core prerequisite. Deeply understanding this principle, Diliuli Biological has established a comprehensive industrial chain system, spanning from large-scale earthworm farming to deep processing, extraction, and finished product development, laying a solid foundation for high-quality earthworm protein production. Leveraging its proprietary industrial cluster advantages, the company has achieved standardized production of dried, fresh, and frozen earthworms, with its frozen earthworm storage capacity setting a world record.  In the farming phase, the company employs industrialized and intelligent cultivation models, strictly controlling the breeding environment to ensure the purity and safety of raw earthworm materials. In the extraction phase, supported by 11 patented technologies and the research capabilities of its academician expert workstation, advanced processes such as protein hydrolysis are utilized to produce white to light yellow powdered earthworm protein peptides. These peptides exhibit excellent properties, including water solubility and stable chemical characteristics, providing a reliable raw material foundation for food applications.  As a national high-tech enterprise, the company's earthworm protein products have been approved by the U.S. FDA and meet all the requirements stipulated in the 2009 No. 18 announcement of the Ministry of Health regarding new food resources, ensuring robust safety assurance for their extensive use in the food industry.

Brand Culture

Brand Culture

Corporate Vision
Contribute to soil health    
Contribute to the nutrition and health of animals
Contribute to the physical health of the people

Corporate Philosophy
The earthworm industry benefits others and reaches oneself
The spirit of earthworms is surprisingly upright


Enterprise Core Values
A group of people, one dragon, one tendon, one thing, for a lifetime


Development History

    • December 2025

      In December 2025, the company won the "National Food and Drug Same Origin Famous Excellent Special New Product Award".

    • June 2025

      In June 2025, Mr. Jia Liming, the Chairman of the company, was appointed as the Vice Chairman of the Non Drug Therapy Working Committee of the China Ethnic Medicine Association.

    • March 2025

      In March 2025, the company became a member unit of the China Non Prescription Drug Association.

    • November 2024

      In November 2024, the company was elected as the chairman unit of the "National Earthworm Industry Alliance" of the China Food, Soil and Livestock Export Chamber of Commerce.

    • April 2024

      In April 2024, the company was awarded the honor of "Tianjin May Day Labor Award" by the Tianjin Federation of Trade Unions.

    • December 2023

      In December 2023, Dilongli Company was rated as a national high-tech enterprise.

    • September 2023

      In September 2023, Mr. Jia Liming, the founder of the company, was awarded the honor of "King of Earthworms" by the China Brand Strategy Development Research Center.

    • October 2022
      In October 2022, Earthworm Company and Minsheng Company were respectively rated as national high-tech enterprises.
    • July 30, 2021

      On July 30, 2021, after eight years of effort in Beijing, the project of "China Organic Earthworm Advocates" was launched and approved by 11 experts for initial review and inclusion in the China Organic Food Catalog.

    • June 2021

      In June 2021, the company became one of the participating units of the National Liquor Standardization Committee's liquor quality standard, and the only enterprise in the Dilong industry to participate in the formulation of this standard.

    • May 2021

      In May 2021, the Technical Regulations for Earthworm Farming, hosted by our company, were listed as the "Tianjin Local Standard".

    • 2021

      Winner of "May 1st Labor Medal" of Tianjin in 2021, and honorary unit of "Double" model worker of Tianjin.

    • 2020

      In 2020, the company's earthworm raw materials were tested by SGS in the United States, and the relevant indicators were about 6 times better than the "National Pharmacopoeia Earthworm Standard" for enterprises.

    • December 30, 2020

      Tianjin Daily - Full page report "Dilongli Bioengineering (Tianjin) Co., Ltd.: Small Earthworms Lead the Way to Wealth".

    • May 2020

      In May 2020, under the name of "Dilongli Bioengineering (Tianjin) Co., Ltd.", more than 70000 yuan worth of "Longluokang" brand functional food with medicinal and edible properties was donated to medical staff and patients working in Wuhan to enhance immunity.

    • 2019

      In 2019, it was recognized as a "National Science and Technology oriented Small and Medium sized Enterprise".

    • June 2019

      In June 2019, Jia Liming, along with Li Hongzhong, member of the Central Political Bureau and Secretary of the Tianjin Municipal Party Committee, and Zhang Guoqing, Mayor of Tianjin, went to Gansu Province to provide counterpart support and coordinate with Yuzhong County to carry out poverty alleviation cooperation in the eastern and western regions. He introduced earthworm farming technology to Yuzhong County, Gansu Province through the government and made every effort to serve Gansu in winning the battle against poverty.

    • 2018

      In 2018, our industry's earthworm protein "small molecule peptide" had a content of 98.48% and was produced by manufacturers with a content below 500 daltons.

    • 2018

      In 2018, the Chinese earthworm industry and earthworm industry were registered with the FDA.

    • 2017

      In 2017, it was awarded the title of "Tianjin Famous Brand Product" for the years 2017-2020.

    • 2017

      In 2017, it was awarded the honorary unit of "National Excellent Rural Professional and Technical Association".

    • 2017

      The unit that implemented the creation of the "Dilong Industry Brand" in 2017.

    • 2017

      Tianjin Jialiming Model Worker Innovation Studio was established in 2017.

    • 2016

      The company was recognized as a "National High tech Enterprise" and established an earthworm industry earthworm expert academician workstation in the same year.

    • 2007

      The company has established the National Earthworm Professional Cooperative - Tianjin Ninghe County Chenyang Earthworm Production and Sales Professional Cooperative

    • 2004
      The Earthworm Breeding Association of Ninghe County, Tianjin was established in 2004.
    • 2003

      In 2003, it was listed as a "Product Spark Program Project" by the Tianjin Science and Technology Commission

    • July 2003

      The company has become a domestic exporter of earthworm eggs (cocoons) in bulk to Malaysia and Canada

    • October 2002

      The company has become a domestic earthworm breeding company with import and export rights.

    • June 2002

      The company has become a domestic manufacturer of earthworm bio organic fertilizer exported to Japan.

    • May 2002

      The company has become a large-scale domestic manufacturer of earthworms exported to the United States.

    • April 2002

      Successfully developed puffed earthworm strips, became the developer of "puffed earthworm strips", and exported the products to Hong Kong, successfully developing a crude earthworm kinase purification project.

    • October 1999

      Establishing a professional website for earthworms in China

    • August 1998

      Develop the "Thousand Earthworm Industry Standard" according to enterprise standards

    • July 1997

      The company has become a domestic manufacturer that uses natural drying methods to produce earthworms.

    • November 1995

      The company has become a manufacturer exporting fresh earthworms to foreign countries

    • 1991

      Tianjin Jialiming Earthworm Breeding Co., Ltd. is a large-scale professional manufacturer of dried, fresh, frozen earthworms and earthworm castings in Tianjin's history

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