Two language exams will be held each year to create a pool of qualified university graduates for government recruits, according to the Civil Service Bureau.
Those who pass the exam can apply for a job within three years.
Secretary for Civil Service Joseph Wong Wing-ping said the result might also help private sector recruitment.
'Some might say that the test actually also benefits the private sector in looking for qualified candidates,' he said.
The Government currently holds a language examination whenever there is a major recruitment drive for jobs requiring university degrees, such as administrative officers. But the test and interview process usually takes a year to complete.
Mr Wong said the language test would be extended to all graduate-level government jobs to enhance Chinese and English proficiency.