The single town in the corner of the single town compound in a single county is located in the residence of the single county party Committee and county government. It is the political, economic, cultural and information center of Shan County, with superior geographical location and convenient transportation, and 105 National Highway and Dingdang Highway run through it. It has jurisdiction over 6 offices, 28 administrative villages and 10 neighborhood committees with a population of142,000 (including 70,000 agricultural population and 72,000 urban population), with a total area of 67.5 square kilometers and 39,000 mu of cultivated land. In 2000, the town's industrial and commercial tax revenue reached130,000 yuan, and the town's available financial resources reached170,000 yuan.

Agriculture is mainly based on vegetable cultivation. It has a history of vegetable cultivation for more than 60 years. There are 14 specialized villages for vegetable production in the town, and vegetable production is mainly based on protected cultivation. There are 2500 greenhouses and 30000 arches in winter. Vegetable varieties mainly include tomato and cucumber series varieties, purple cabbage, lettuce and so on. Among them, tomatoes are famous all over the country for being big, fleshy and seedless. 1996 was praised as "the hometown of tomatoes in China" by China Agricultural Products Naming Committee. It has two large vegetable trading markets with a daily trading volume of over 600,000 yuan. Single town has developed into the largest vegetable production base and vegetable distribution center in southwest Shandong. Practical industries such as fungi, flowers, fruit trees and animal husbandry also have a certain scale.

The individual and private economy has developed rapidly. At present, there are 4 136 industrial and commercial households in various enterprises, forming pillar industries such as window screens, fishing nets, plastics, mirror making, screen films, candy, vermicelli, construction, transportation and catering services. Among them, plastic-coated screen windows have occupied 60% of the national market share and exported to Japan, South Korea, South Africa, Western Europe and other countries.

The acceleration of urban construction, vigorously implementing the urbanization development strategy, actively raising funds, relying on urban construction planning, and increasing the construction of infrastructure such as water, electricity, roads and communications have provided a good hard environment for economic development.

In order to speed up the economic development, the Party committee and government of Shan Town have formulated preferential policies, actively managed the economic development environment, increased the opening-up and investment attraction, and hoped to carry out extensive economic and technological cooperation with foreign businessmen. In agriculture, relying on the advantages of local resources, cooperative development of agricultural products processing projects; In the private economy, introduce technology and capital, expand the scale of enterprises, cultivate and expand the existing leading industries; In terms of town-run industries, various forms such as leasing and transferring enterprise property rights are adopted to transform and graft existing enterprises and revitalize existing assets; In terms of urban construction, it is necessary to attract funds and do a good job in urban development, old city reconstruction and infrastructure construction. Actively introduce high technology and build new high-tech enterprises in the town industrial park.

In 2007, Chengguan Town was abolished and three sub-district offices were established, namely, Beicheng, Cheng Nan and Gardening. Since then, Chengguan Town of Shan County has become a historical term, but the construction of Shan County has also turned a new page.