The cost of non-invasive DNA examination is about 2,000 to 3,000 yuan, which varies according to the region and the level of the hospital. Non-invasive DNA test is used to determine whether there is any chromosomal abnormality in the fetus, which can be detected as early as possible to prevent the fetus from developing abnormally. Non-invasive DNA testing is usually performed when abnormal results are found in Down syndrome screening, which can more clearly determine the condition of the fetus, and the cost of this test is about 2,000 to 3,000 yuan, which varies according to the region and the level of the hospital. If non-invasive DNA testing is needed, it is recommended to go to the hospital in a timely manner for treatment under the guidance of a doctor.