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In recent years, the market demand for automotive electronics functions is becoming increasingly strong, making the car manufactures have to rely on standardized architectures, interchangeability stronger software components to reduce software complexity and costs. AUTOSAR is intended to provide software standardization and improve reusability. This paper investigates the AUTOSAR runtime environment (RTE) specification. Based on the laboratory research in automotive electronics software, we designed an implementation of AUTOSAR RTE, to achieve the main RTE concepts:execution and communications of software components. Then a source code generator is implemented to generate the proposed RTE code for AUTOSAR applications. Experiment results show that the proposed RTE and code generator can shorten the development and test time of new automotive electronics products, and construct new ECU software rapidly to help companies achieve rapid market response.The main work of this paper can be summarized in the following aspects:1) Investigated the development of AUTOSAR standards and methodologies, existing automotive electronics software solutions and open source development platform, laid a theoretical foundation for an implementation base on AUTOSAR RTE.2) Designed a framework and operational mechanism for RTE implementation that provides software components communications support and operating environment and abstracts underlying ECU implementation.3) Designed and implemented a code generator based on Artop for the proposed RTE implementation. The code generator can automatically generate RTE source code according to ECU configuration description file.