The Fifth Plenary Session of the 18 th CPC Central Committee proposed the Internet plus strategy. Internet plus era more urged us to pay high attention to the online trading platform provider′s location and its ownership position under the current legal system. And the online trading platform providers, as a special subject of the duty of care, should take good mangers′ duty of care for its users. Therefore, it is necessary to use legal means to regulate the online trading platform providers′ duty of care.U...