The present application discloses a method for acquiring a network resource, device, and system, relating to the field of communications technologies, and enabling logical use of a communication resource while improving the success ratio of communication resource requests. In the present application, a terminal device may request a communication resource from a second network device according to action indication information and/or statistical information sent by a first network device. The terminal device chooses, according to an actual status, to lower a resource request level or to implement other measures matching an actual current status of a network, and then requests a communication resource from the second network device, thereby making logical use of a communication resource while improving the success ratio of communication resource requests.