A monomer comprising vinylidene fluoride as a principal component is
suspension-polymerized by supplying the monomer in division to a
polymerization system containing a polymerization initiator at a pressure
below a critical pressure Pcr (=4.38 MPa) of vinylidene fluoride and at a
pressure above Pcr. As a result, a vinylidene fluoride polymer having
excellent high-temperature coloring resistance and with remarkably less
elution of organic matter and ionic components is produced, without using
a specific halogenated hydrocarbon and without incurring troublesome
labor and cost for recovery thereof.