Can a junior college degree apply for the national civil service examination?

It is ok to apply for civil servants. And most positions do not require level 4. However, with a college degree, there will be fewer positions to be recruited, and national civil servants will basically not recruit specialists. If there are, they are basically grass-roots posts with difficult working conditions and contents, such as working in remote and poor areas or at sea. There will be more provincial civil servants, most of whom are posts in units below the county level.

The recruitment of junior college students is mainly concentrated in the grass-roots police in the public security system, prison guards in the prison system, bailiffs in courts and procuratorates, and clerks in grassroots business offices below the county level in the industrial and commercial system.

Some have strict professional restrictions, while others are not limited to majors. If you really can't find a position that suits your major, I suggest you apply for those positions that don't limit your major, but the competition will be fierce.