Abstract: A pole base moving apparatus of a tape recorder in which the link structure of a pole base which pulls out a magnetic tape from a tape cassette to a head drum is provided. The pole base moving apparatus includes a slide member which has a reciprocating motion produced by a motor and in which moving slots of a predetermined pattern are formed and first and second link members whose one ends are respectively combined with a pair of pole bases and the other ends of which have protrusions which respectively enter and exit the moving slots. Accordingly, it is possible to simplify the structure compared with the conventional technology, thus simplifying the assembly process and reducing the number of the parts and manufacturing costs.