<p>Disclosed is a thermoplastic polymer composition which has excellent heat resistance, chemical resistance and oil resistance at the same time, while attaining flexibility and excellent molding processability. Specifically disclosed is a thermoplastic polymer composition composed of 10-95% by weight of a fluororesin (A) and 90-5% by weight of a crosslinked fluorine rubber (B). The fluororesin (A) is composed of a fluorine-containing ethylenic polymer (a) having a melting point of 120-330°C, while the crosslinked fluorine rubber (B) is obtained by dynamically crosslinking at least one fluorine rubber (b-1) or a fluorine-containing thermoplastic elastomer (b-2) under melting conditions in the presence of the fluororesin (A) and a crosslinking agent (C).</p>
