Police and medics prepare as nine million students take China's equivalent of the Leaving Certificate this week.
The examination is described as the world's largest of its kind.
China had a record high of 10.5m applicants for the exam in 2008 and 9.15m in 2012 with 75% of them enrolled last year.
The two-day test is the end-point of 12-year basic education. Chinese, math and a foreign language are compulsory.
The traffic authorities in cities across the country are also preparing to ensure the applicants can reach their exam sites smoothly.
In the capital Beijing, the municipal traffic authorities say they will deploy more policemen and police vehicles to ease traffic so that applicants can arrive on time for the exam.
Police will also cordon off streets near schools that are used as examination sites.
The Beijing Red Cross 999 emergency centre has over 100 ambulances in place for the candidates.
Over 600 medical workers are standing by for possible illness in candidates.
In Chengdu, the capital of southwest China's Sichuan Province, 1,300 traffic policemen, each equipped with a motorcycle, have been arranged to direct traffic and give free rides to candidates.
Taxis in some cities and towns will also offer free rides to students who are taking the exam.
Meanwhile, Xu Mei, spokeswoman of the ministry has said that examination places across the country have been equipped with video monitoring facilities in order to prevent cheating and test fraud.
The public security departments at all levels have uprooted a number of gangs suspected of attempting to produce or sell equipment designed for test fraud during the examination.
Ms Xu said any individual or group found to have become embroiled in organising cheating or peddling equipment for cheating will receive harsh punishment.
Applicants found to have been involved in cheating or test fraud during the exam will be stripped of admission qualification, according to the spokeswoman.