At present, "parking pain" has become a common problem in cities, which has caused frequent parking disputes. Parking difficulties are not only found in large and medium-sized cities, but also in counties and towns with populations of tens of thousands or hundreds of thousands, thus causing a series of problems for urban traffic. However, as the number of cars per capita continues to increase, the parking problem will continue to worsen. So, there is an urgent need for a way to alleviate the parking problem. This project proposes a private parking space sharing model and develops a shared parking "Smart Parking" mini program to achieve a win-win situation for both the supply and demand of parking spaces without increasing land occupation. The business model is based on direct communication between the publisher and the demander. Moreover, a credibility system is established to effectively maintain the order of the system; the technology is based on the use of the WeChat platform and Beidou navigation system, through which parking positions and route guidance are provided directly. The sharing model of private parking spaces effectively reduces the volume of traffic caused by parking problems, thus reducing traffic congestion. It not only avoids the idle waste of parking resources, but also reduces the burden of insufficient public parking spaces in the whole city, so that urban parking difficulties can be effectively relieved, while also achieving the effect of relieving urban traffic pressure and reducing urban pollution.