可不可以到瑞典去读预科?

no, you cannot, although you can come to Sweden for some other reasons and do all the preparations then, but if you are going to apply for it, your application is mostly likely going to be rejected

瑞典这边很少有本科是英文的，一般研究生是英文项目的比较多，所以你到这里读本科的可能性不大，但是瑞典福利好，09年不收学费，所以你可以找一些中介机构看一下能不能申请到这里的本科生。祝好运！