The invention relates to the technical field of toy invention and development, and discloses a multi-expression toy based on magnetic fluid and a manufacturing method thereof. The toy comprises a case, wherein a plurality of grooves are formed in the case and are used for forming a plurality of expression mold grooves; the magnetic fluid is filled in the grooves; a sealing plate covers on the case; the sealing plate and the groove form a sealed passage used for enabling the magnetic fluid to freely flow in the passage; the peripheral side of the case is provided with a slideway; a magnet capable of freely sliding is arranged in the slideway. The direction change of the magnetic field is caused through the magnet position movement; the magnetic fluid in the passage flows into an expressionmold groove in the corresponding position under the effect of the magnetic field; the toy further displays the corresponding expressions; the expression displayed by the toy is correspondingly changedwhen the magnet position is changed; the operation is simple; the interestingness is high; the hobby of people is met; the time occupied by the mobile phone in the life of people is shortened; the life interestingness of people is enhanced.