The perfection of market mechanism is the important guarantee for building double-circulation new development pattern, however, element allocation marketization is an important path for breaking regional barrier and industrial barrier and making economic circulation freely move. Under double-circulation new development pattern framework, market-oriented reform should be conducted from such three perspectives as boosting industrial transfer, enhancing regional connection and realizing overall industrial balanced development for element market. On system level, the systematic guarantee for the marketization and systemization of element allocation should include such five core points as keeping competition neutrality, perfecting transaction system, perfecting property right system, promoting industrial openness and activating private capital.