The invention provides an assembled type pole changing stator iron core and winding and relates to a motor stator iron core and winding. The assembled type pole changing stator iron core and winding mainly comprises a stator magnet yoke and a plurality of stator insert parts; in an assembling process of the assembled type pole changing stator iron core and winding, a working winding and a starting winding are wound firstly, then the working winding and the starting winding are assembled in the stator insert parts, then the plurality of stator insert parts are arranged at the inner side of the stator magnet yoke, a traditional method that a lead wire is embedded in a stator line slot through manual marking and line pressing in the stator winding inserting process is not required, the assembling efficiency of the assembled type pole changing stator iron core and winding is high, and the production efficiency can be improved and the cost is reduced due to the adoption of mechanical equipment.