The invention provides a proximity relation detection-based two-dimensional code payment system and method. A collection verification service platform is connected with a two-dimensional code collection module and sends a dynamic identifier code or a dynamic transaction code to the two-dimensional code collection module; the two-dimensional code collection module broadcasts the dynamic identifier code or the dynamic transaction code through WiFi or a BLE link; an intelligent mobile phone obtains the dynamic identifier code or the dynamic transaction code, automatically calls a two-dimensional code reading tool to scan a static two-dimensional code when being judged to be close to the two-dimensional code collection module, packages the static two-dimensional code into a verification request message and sends the verification request message to the collection verification service platform for performing security verification; and the collection verification service platform verifies the uploaded verification message and finishes a payment transaction through a payment interface provided by a payment platform after the verification is passed. According to the system, the dynamic code is introduced based on the static two-dimensional code to perform the security verification, so that the payment security is ensured; and the two-dimensional code reading tool can be automatically called to perform code scanning, so that a payment action is reduced and the payment experience of a user is improved.