Half a month to a month. According to the inquiry of official website of China Construction Bank, the new employees of CCB will receive 1 pre-job training for 2-4 weeks, focusing on the theoretical knowledge and practical operation of the training. China Construction Bank, formerly known as People's Construction Bank of China (later renamed as China Construction Bank on March 26th, 1954+00), is a large state-owned commercial bank managed by the central government and a national vice-ministerial unit.