JD.com can use HaiTou and Kuaile to promote a new store. The specific method to use depends on your promotion goals and budget. HaiTou is a promotion method of JD.com's advertising platform. It can be targeted according to the target group. You can choose multiple conditions such as region, gender, age, interests, etc. It is suitable for promotion activities that require precise delivery. Kuaile is a promotion method for JD.com's self-operated stores. It can display advertisements on the JD.com APP homepage, product details page and other locations. It is suitable for promotion activities that need to increase store exposure and sales. Therefore, if your promotion goal is to increase store exposure and sales, you can choose to use Kuaile; if you need precise delivery, you can choose to use HaiTou. Of course, you can also use a combination according to actual conditions.