The invention discloses a method for testing and analyzing frictional noise and a test device for the method. The method comprises that: a lower fixture clamping a lower friction part is fixed onto a reciprocating device; an upper fixture clamping an upper friction part penetrates through a horizontal support to contact with the bottom of a strain force sensor; a three-dimensional acceleration sensor is mounted on the upper fixture; two ends of the horizontal support are fixed onto support bases by piezoelectric force sensors; and the strain force sensor is fixed to the bottom of a two-dimensional moving table. A sensing end of an acoustic sensor is close to a contact interface of the upper friction part and the lower friction part, and the two-dimensional moving table is controlled so that the upper friction part and the lower friction part are controlled to do reciprocating friction motion, and the three sensors accurately, synchronously and dynamically acquire the frictional noise,vibration acceleration and frictional force and analyze the frictional noise, the vibration acceleration and the frictional force in real time. Therefore, mutual relation and influencing law of the frictional noise, the interface and characteristics of a system are accurately analyzed, a mechanism of production of the frictional noise is disclosed, and a more accurate and reliable test basis is provided for realizing noise-reduction design for mechanical equipment, improving performance of the mechanical equipment and prolonging the service life of the mechanical equipment.