1、登录淘宝/天猫卖家账号，进入卖家中心，找到【我订购的应用】中的【火牛】，点击登录并授权。
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2、在火牛首页导航栏找到【商品】中的【主图视频】点击进入；或者在【商品管理】栏中找到【主图视频】点击进入主图视频管理页面。
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3、在视频制作页面，可以通过系统推荐的方式筛选需要制作主图视频的宝贝；筛选好商品后，勾选需要制作主图视频的宝贝，点击宝贝后面对应的【制作视频】按钮制作当前宝贝的视频，或者点击页面右上角【批量制作】按钮批量制作当前页面已经勾选宝贝的主图视频。
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4、点击制作按钮后，会跳转到视频制作页面，在该页面可以选择视频模板，即制作视频的图片进入的效果；音乐效果，目前可以供选择的有三种模式，无音效，MP3，MP4。
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5、选择图片，此处图片可以是商品主图，也可以是自己制作好图片后，在本地上传。通过点击【图片】栏的图片位置，设置该位置的展示图片。制作好以后，可以点击左上角预览框内的【播放】按钮进行预览。制作好后，点击右上角【制作】按钮即可。
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6、制作好视频后，返回到火牛视频制作页面，找到制作好主图视频的单品，点击对应宝贝下【视频】下的预览效果，查看制作好的视频，如果不满意，可以点击【重新制作】按钮，再次制作视频。
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7、制作好视频，效果满意后，点击对应宝贝后面的【下载】按钮，将宝贝视频下载到本地电脑。
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8、回到火牛视频制作页面，点击对应宝贝后面的【去发布】按钮，跳转到宝贝详情页编辑页面，在该页面找到【主图视频】选项，点击该选项，在弹出的视屏中线窗口，点击【上传视频】按钮，进入淘宝视频页面。
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9、在淘宝视频页面选择【电脑端视频】，后点击【上传视频】按钮，进入上传视频页面，点击该页面中心的“+”，选择制作好的视频，进行上传。
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10、选择好视频后，需要填写对视频的描述，以及视频标签，标题，分组等信息，设置好后，勾选页面右下角【同意《上传服务协议》】，并点击确认按钮即可。
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11、返回淘宝视频页面，查看上传视频的状态，刚刚跳转回来时是【转码中】；这时刷新页面，也可以按键盘F5键进行刷新，当视频状态变为【审核成功】后，即视频以上传完成。
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12、上传好视频后，返回到宝贝详情编辑页面，点击【主图视频】按钮，进入【视频中心】选择上传好的视频后，查看视频状态，确认无误，点击页面最下方的【发布】按钮，即可设置好一个商品的pc端主图视频了。