您需要更改 id 从字符串到mongoose objectId

You need to change your id from string to mongoose objectId

var id = req.body.productId
   var query = {'product._id' : mongoose.Types.ObjectId(req.body.productId)};
   Release.find(query)
   .select('_id version description product releasedate')
   .sort({releasedate: 1 })
   .exec()
   .then(releases => {
     console.log(releases);
     res.status(200).json(releases);
   })