Keshan County belongs to Qiqihar City of Heilongjiang Province. It is located in the west of Heilongjiang Province and the northeast of Qiqihar region. It is connected to Kedong County in the east, Baiquan County in the south, Yi 'an County in the west, Nehe City across the Nemer River in the north, and Wudalianchi City in the northeast, with a total area of 3186.11 square kilometers. It has jurisdiction over 7 towns and 8 townships. According to the 7th census data, as of midnight on November 1, 2020, Keshan has a permanent resident population of 255,041.

Keshan County is located in the hinterland of Songnen Plain, one of the three major black soil belts in the world. It is rich in agricultural products such as potatoes, soybeans and corn. It is the hometown of Chinese potato seed potatoes and the hometown of Chinese high protein soybeans. In October 2020, it was rated as the national model city (county) of double support.
In 2020, the GDP of Keshan County reached 6.78 billion yuan, with a year-on-year growth of 4.1%; China's investment in fixed assets reached 3.48 billion yuan, up 21.8% year on year; The budgetary revenue of public finance reached 270 million yuan, up 25.1% year on year; The planned industrial added value reached 260 million yuan, up by 25.4%; The zero amount of the limited social network reached 969.36 million yuan, up 46.7% year on year; The per capita disposable income of urban and rural residents reached 23,754 yuan and 15,697 yuan respectively, up 1.1 percent and 8.5 percent year-on-year.