Meng was born in July 1947 in Wu County, a present-day urban district of Suzhou, Jiangsu Province. In the 1960s, he headed to Changxing Island in Shanghai to become a tractor operator. For the next 13 years he worked on the rural agricultural cooperative. He graduated from the Shanghai Mechanical College. He joined the Communist Party of China in 1971. He became head of the rural cooperative in 1981. He spent much of his earlier political career in Shanghai. He served in leading roles in Chuansha County and Jiading County, before being transferred to become one of the deputy mayors of Shanghai starting in 1993. His portfolio included was agriculture and rural development. In 1996 he was promoted to become the deputy Communist Party secretary of Shanghai, one of the most powerful positions in China's commercial hub. He held the position until 2001. While in Shanghai Meng was low-key and camera-shy, but was largely popular with city residents.
Party secretary of Jiangxi
In 2001, Meng was appointed the Communist Party secretary of Jiangxi Province. Some say Meng was transferred out of Shanghai because he had lost out on a struggle to Chen Liangyu become the city's party secretary. Meng and Chen were polar opposites in many ways – Chen preferred to be in the limelight while Meng preferred doing work behind the scenes. Meng was also known for paying regular respects for retired municipal politicians. When Meng arrived in Jiangxi, most residents were optimistic. A common refrain amongst Jiangxi residents at the time was "If Jiangxi wants to be rich, keep Meng Jianzhu!". While Meng was often regarded by observers as a "soft" leader, he was known for his strong adherence to rules and principles. For example, once during a provincial conference of officials at county level and above, some county leaders did not show up and instead sent their assistants to attend. Meng responded to this by postponing the entire conference until all the required attendees arrived as a means to reprimand those who failed to show. He remained party secretary of Jiangxi until October 28, 2007, when he was transferred to Beijing and appointed the Minister of the Public Security, replacing political heavyweight Zhou Yongkang, who was elevated to become a member of the Politburo Standing Committee.
Meng became a member of the Politburo of the Communist Party of China in November 2012, following the 18th Party Congress. He succeeded Zhou as Secretary of the Central Political and Legal Affairs Commission. However, the commission's powers and autonomy was significantly curbed during Meng's term as a result of the consolidation of power around the central authority of Party general secretaryXi Jinping. In December 2012, he was succeeded by Guo Shengkun as Minister of Public Security. In January 2013, Meng announced that his commission would begin work on abolishing the "re-education through labour" system, which has been widely criticized internationally. This was further cemented at the third plenary session of the 18th Central Committee held in November 2013. The implementation of the policy was largely completed by the end of that year. Meng also criticized the interference of local party authorities, particularly local Zhengfawei, in individual court cases. While his predecessor Zhou Yongkang underwent investigation for corruption and other offenses in 2014, Meng remained untouched by the scandal despite having served under Zhou for five years as public security minister. Other former subordinates of Zhou in the ministry, such as former deputy ministerLi Dongsheng, were detained for investigation.
Personal life
Meng's associates and colleagues describe him as soft-spoken, humble, likes to smile, of thin build, and looks like an intellectual.