Generally, the self-driving car ( Berger, 2014 Berger and Dukaczewski, 2014 Walker et al., 2001 Thrun, 2010 Baruch, 2016 Barker et al., 2013 Litman, 2015 Levinson et al., 2011), also termed as the wheeled mobile robot, is a kind of intelligent car, which arrives at a destination based on the information obtained from automotive sensors, including the perception of the path environment, information of the route and car control. However, due to few literatures ( Van Arem, 2014 Ibanez-Guzman et al., 2012) reviewing the key technology of self-driving car, many problems are ambiguous, i.e., what is the progress of self-driving car? Is the large-scale commercial use of self-driving car helpful to the human society? To address the above problems, this paper investigates the key technology of self-driving car, discusses its implementation obstacles and summarizes the whole picture of the technology progress, which are expected to be helpful for the reader to understand the commercial use of the self-driving car. Nowadays, even though vehicle driving assistive technology has been assembled in the premium cars on a large scale, the concept of the self-driving car has constantly appeared in various news and reports ( Ross, 2014 Ackerman, 2016a Harris, 2016 Hassler, 2017 Computerworld, 2012). The full terms of this licence may be seen at Anyone may reproduce, distribute, translate and create derivative works of this article (for both commercial and non-commercial purposes), subject to full attribution to the original publication and authors.

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