Method for producing fluorine-containing copolymer

Provided is a method for producing a fluorine-containing copolymer with which it is possible to efficiently produce a fluorine-containing copolymer in which discoloration and foaming during heating are suppressed. A method for producing a fluorine-containing copolymer, which comprises a step for producing a fluorine-containing copolymer in the presence of a hydroperoxide, at least one substance selected from the group consisting of sulfite, hydrosulfite, dithionite and pyrosulfite, at least one substance selected from the group consisting of acidic substances and substances that generate an acid by hydrolysis, and an aqueous medium, a fluorine-containing copolymer is produced by polymerizing tetrafluoroethylene and a monomer other than the tetrafluoroethylene. 本发明提供一种含氟共聚物的制造方法，其能够高效地制造加热时着色和发泡得以抑制的含氟共聚物。一种含氟共聚物的制造方法，其具有以下工序：在氢过氧化物、选自亚硫酸盐、亚硫酸氢盐、连二亚硫酸盐和焦亚硫酸盐中的至少一种、选自酸性物质和通过水解产生酸的物质中的至少一种、以及水性介质的存在下，使四氟乙烯和上述四氟乙烯以外的其他单体聚合而制造含氟共聚物。