Dong'an Shangjing is located on Dong'an Street in the city of Harbin, Heilongjiang Province, China. This historical and cultural site is situated in the heart of the city, making it easily accessible to both locals and tourists. The street itself is a bustling commercial area, lined with shops, restaurants, and historical buildings that reflect the city's rich heritage.

The reason for Dong'an Shangjing's proximity to Dong'an Street can be attributed to the city's development and planning over the years. Harbin, known for its Russian influence, was established as a trading post in the late 19th century. As the city grew, so did the importance of trade and commerce, which led to the development of a network of streets that facilitated economic activities. Dong'an Street, being one of the main thoroughfares, played a crucial role in this development.

Historical records indicate that Dong'an Street was initially built in the early 20th century, during the period of Russian occupation. The street was named after the Russian word "Dong'an," which translates to "Eastern Gate." This name was chosen to reflect the street's strategic location near the city's eastern entrance. Over time, the street became a hub for various businesses, including shops, restaurants, and cultural institutions.

The data supporting this information comes from various historical sources, including the Harbin City Planning Bureau and the Harbin Historical Research Institute. According to these sources, Dong'an Street was officially opened in 1906 and has since been a vital part of Harbin's urban landscape. The street's significance is further highlighted by its inclusion in the Harbin Historical and Cultural Protection List, which recognizes its historical and cultural value.

In conclusion, Dong'an Shangjing is located on Dong'an Street, a street that has been integral to Harbin's development and cultural heritage. The street's strategic location and historical significance make it a popular destination for visitors interested in exploring Harbin's past and present.