Provided is a method and system for dynamically parallelizing an application program. Specifically, provided is a method and system having multi-core control that may verify a number of available threads according to an application program and dynamically parallelize data based on the verified number of available threads. The method and system for dynamically parallelizing the application program may divide a data block to be processed according to the application program based on a relevant data characteristic and dynamically map the threads to division blocks, and thereby enhance a system performance.