The invention relates to the field of integrated circuits, and particularly relates to a phase noise based integratable true random number generation method and a phase noise based integratable true random number generation device, which are applicable to the filed of information security such as data encryption and the like, and solve the problem that in traditional methods for generating random numbers of circuits, generated random numbers can not pass through random number tests, and can not be integrated. The method and device disclosed by the invention have the advantages and positive effects that: first, generated random number sequences are not periodic, so that stable random numbers capable of passing through the international random number industrial test standard (NIST statistical test pack) at a speed of 0-100 Mbit/s can be generated without post-processing and just by adjusting the clock frequency and structural parameters; second, the system is implemented by completely adopting digital logic units, so that the circuit is easily implemented, and can be compatible with different programmable integrated circuits, therefore, the circuit has universal applicability and flexibility; and third, the used random number generating circuit can achieve integration and miniaturization effects, so that the circuit can be widely applied to the field of information security such as data encryption and the like.