There are four main misconceptions of philosophy. 1.Philosophy has no social usefulness. 2.Philosophy is very difficult to understand. 3.Philosophy is a trouble-maker. 4.Philosophy can be replaced by science. In this article, I will provide a viewpoint of philosophy in the era of science, i.e., Philosophy as metascience. The gist is that the findings of scientific research are the very start point for philosophical thinking, and any conclusions of philosophical thinking will be the possible guidelines for further scientific evelopment. From this philosophical point of view, the misconceptions mentioned above will be dissolved straight and completely.