Noninvasive prenatal biological information detection and analysis method

The invention relates to the field of medical detection and particularly discloses a noninvasive prenatal biological information detection and analysis method. For improving the accuracy of analyzing different quantities of to-be-detected samples, different detection and analysis methods are selected according to the different quantities of the to-be-detected samples, and different analysis policies are adopted for parameters obtained by the to-be-detected samples and parameters obtained by a normal reference set, so that the accuracy of analysis is improved to a greater extent. According to the method, the problem of inaccurate regression result caused by great influence of abnormal data on slope due to use of a least square method for regression in a process of correction by using a whole chromosome method in the prior art is well solved by adopting robust regression and CV regression, so that the robustness and accuracy of sample analysis are ensured. A set of analysis method for judging anomaly of sex chr