Provided is a work machine which includes a fuel tank having a fuel-filler portion, a battery arranged near the fuel-filler portion, and a cover member. The cover member has a cover portion which covers an upper surface of the battery and an extension portion which continuously extends from the cover portion toward the fuel-filler portion to cover a region from the battery to the fuel-filler portion. In this way, the fuel can be effectively prevented from splashing to the battery.