Hi @LucyChenMSFT-4874 ,
Thanks for your information, actually I have read the article you mentioned in your comment, but I think it just says TLS can be mutual and client can send its certificate to server, it does not say MSSQL Server support mutual TLS. I also read other document about MSSQL Server and got the information that Client Certificate is only supported by MSSQL Server on Linux, further more, it requires the client and MSSQL Server should on the same Linux Server.
Your article is about how to enable TLS with MSSQL Server, but my question is that if we can provide client certificate to MSSQL Server when we establish the TLS connection to it.