The once-in-a-five-year meet is China's most important political event. The authorities would not like to risk any event which disrupts the meeting where Chinese President Xi Jinping will get a second five-year term.
China's border police will maintain the highest security on the country's frontiers with North Korea, India and Myanmar as the Communist Party gear up for its all-important Congress, the Hong Kong-based South China Morning said in a report.
"(We will) stick to the highest standards, strictest requirements and strongest measures to ensure absolute border security for the party's 19th national Congress," the report quoted an official statement as saying.
China's northeast borders reclusive North Korea. The North Korean nuclear crisis has worried the world, especially its ally China.
China would not also want Myanmar's Rohingyas to cross over into Chinese border.
"The border forces under the People's Armed Police became the latest government agency to make a show of support for President Xi Jinping, saying officers would focus on the frontiers to ensure stability for the five-yearly gathering," the newspaper said.
They would also tighten monitoring of coastal areas and ramp up counter-terrorism work, the police were quoted as saying in a statement.
Security personnel has been out in force across the country to make sure the highly choreographed gathering is not disturbed by social unrest.