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The aim of the NUCLEON experiment is a measurement of cosmic rays flux and composition with high statistics in the near of ”knee” region (the energy spectrum 10^11-5×10^14 eV and charge range up to Z∼30) of the long duration orbit space flight. The design and production of the technological trigger modules are performed including front-end and digital electronics of the data acquisition system. The trigger module prototypes were successfully tested at the CERN SPS accelerator pion beam in 2008. The flight trigger module production is in progress. The trigger system conception, the results of beam tests are presented.