Twice. According to Tuhua Education Network, the joint entrance examination for public institutions is conducted twice a year. There is no limit to the number of direct recruitment examinations in provinces, cities, units and institutions. There is a certain difference between taking an examination of public institutions and taking an examination of civil servants. It's not a national exam. It is divided into national entrance examination, provincial unified examination, provincial direct examination, municipal direct examination, unit direct examination and other examination forms organized by the province, and the examination contents are also different.