Design and Implementation of a Loan System Based on Smart Contract

  • Qi YangEmail author
  • Fangfang Xu
  • Yu Zhang
  • Fang Liu
  • Wei Hu
  • Qinghan Liao
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11373)


With the continuous development of the economy, the problems of complicated procedures, mutual distrust, and transaction amount limitation in the traditional lending model can no longer meet the needs of the market. This paper proposes a smart contract-based loan system which uses the decentralized and non-tamperable features of the blockchain to join the loan system through an auto-signing loan treaty. In our system, there is no need to establish any trust base between users, nor does it require the participation of any third-party intermediate trust medium. Users can conduct peer-to-peer transactions with any user in the loan system. The actual test proves that the system can intelligently realize the process of borrowing, loan and repayment. The distributed application is robust, easy to operate and practical.


Blockchain Smart contract Loan system Ethereum private network 



This paper was sponsored by Key Project of Hubei Provincial Department of Education under Granted No. D20181103.


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Qi Yang
    • 1
    • 2
    Email author
  • Fangfang Xu
    • 1
    • 2
  • Yu Zhang
    • 3
  • Fang Liu
    • 4
  • Wei Hu
    • 1
    • 2
  • Qinghan Liao
    • 1
    • 2
  1. 1.College of Computer ScienceWuhan University of Science and TechnologyWuhanChina
  2. 2.Hubei Province Key Laboratory of Intelligent Information Processing and Real-time Industrial SystemWuhanChina
  3. 3.College of Computer ScienceHuazhong University of Science and TechnologyWuhanChina
  4. 4.Department of Information Engineering, City CollegeWuhan University of Science and TechnologyWuhanChina

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