Jianyang District (formerly Jianyang County, Jianning Prefecture), subordinate to Nanping City, Fujian Province, is located in the north of Fujian Province, upstream of Jianxi River, south of Wuyi Mountain, also known as Tancheng, and is one of the five oldest counties in Fujian Province. It is between 27 ° 06 ′ - 27 ° 43 ′ N and 117 ° 31 ′ - 118 ° 38 ′ E. It is adjacent to Songxi County and Zhenghe County in the east, Jian'ou City and Shunchang County in the south, Shaowu City and Guangze County in the west, Wuyishan City and Pucheng County in the north. It is famous in Fujian Province for its "granary of northern Fujian", "tea and fruit base" and "forest and bamboo township". The Song Dynasty was famous for its "home of books" and "famous state of science". It has jurisdiction over 5 streets, 8 towns, 3 townships, 194 autonomous villages and 35 neighborhood committees. According to the data of the seventh population census, as of 0:00 on November 1, 2020, the permanent resident population of Jianyang District was 340843.

On May 27, 2014, with the consent of the State Council, it was agreed to cancel Jianyang City and establish Jianyang District of Nanping City. The former administrative area of Jianyang City is the administrative area of Jianyang District. The Jianyang District Government is located at No. 28, Renmin Road, Tancheng Street; The residence of Nanping Municipal Government was moved from 439 Bayi Road, Yanping District, Nanping City to 36 Nanlin Street, Jianyang District, Nanping City.

In October 2018, it was selected as the 2018 National Top 100 Green Development Zones.

Jianyang District has an area of 3383 square kilometers, 5067263 mu of arable land, 264 thousand hectares of forest, 1999 hectares of forestation in 2019, 1.7073 million square meters of urban roads and 2574.58 hectares of urban construction land at the end of 2019.

In January 2020, Nanping Administrative Center moved to Jianyang District.

In 2020, the gross regional product (GDP) of Jianyang District will reach 26.19 billion yuan.