您是在Type定义中选择的，而不是参数。尝试以下操作：

You are selecting from the Type definition, not the parameter. Try this:

CREATE PROCEDURE [dbo].[sp_InsertUser] 
    -- Add the parameters for the stored procedure here
    @UserTableType UserTableType READONLY

AS
BEGIN
    INSERT INTO tblUser
        SELECT * FROM @UserTableType
END