Technical post: police rank is the abbreviation of modern police rank system, which is used to distinguish police ranks and show the professional identity of police.

Captain is the main rank of a senior police officer in China. The epaulettes are a silver olive branch and three four-pointed star flowers.

Senior police officers in China are divided into two grades and five grades.

Commissioner-General: The silver olive branch encircles the national emblem;

Deputy Commissioner-General: a silver olive branch around the national emblem for half a week;

The rank badge of a captain consists of a silver olive branch and a silver four-pointed star flower. The epaulettes of the people's police who hold professional and technical positions are blue-gray.

Superintendent I (Administration): a silver olive branch and three four-pointed star flowers.

Superintendent II (Administration): a silver olive branch and two four-pointed star flowers.

Superintendent III (Administration): Silver Olive Branch and Four-Corner Star Flower.