(EN) For culturing either one of yeast and mould being true fungi in selective preference, cell group (101) is heated by heating means (102) and cooled by cooling means (103). These operations are controlled by heating/cooling control unit (104). For example, the culturing temperature can be switched between about 27~C and 30 to 32~C thereby. The culturing temperature is set by temperature setting unit (105). It is easy to culture in selective preference true fungi in the culture medium provided for the cell group (101) when the culturing temperature is set for about 27~C and on the other hand yeasts when the culturing temperature is set for 30 to 32~C.