The present invention provides a method for positioning a suspension body and a magnetic suspension device using the method. The method comprises the following steps: step 1, providing a positioning auxiliary forming a channel for the suspension body to enter and rotate therein; step 2, placing the positioning auxiliary on a magnetic suspension base, and a center line of the channel of the positioning auxiliary being substantially collinear with a center line of the rotation of the suspension body at work; step 3, according to the channel of the positioning auxiliary, placing the suspension body at the top of the positioning auxiliary; step 4, releasing the suspension body to make it voluntarily slide down to a position to be suspended to work; step 5, removing the positioning auxiliary. The present invention can make the suspension body quickly slide down to be suspended at its work position by means of the positioning auxiliary, and so make the suspension body suspended normally, thereby greatly increasing the use efficiency.