Provided are a dual-mode low-power wide-area network (LPWAN) chip, a method for data transmission, and a terminal. The method is applicable to a terminal and includes the following. A LPWAN chip is enabled to establish a communication connection with an LPWAN input/output device and to establish a communication connection with an external device. The terminal includes the dual-mode LPWAN chip, and the dual-mode LPWAN chip includes a first LPWAN radio frequency (RF) module, a second LPWAN RF module, and an LPWAN baseband chip coupled with the first LPWAN RF module and the second LPWAN RF module. First data is received, with the first LPWAN RF module, from the LPWAN input/output device over a first channel. The first data is processed into second data with the LPWAN baseband chip. The second data is transmitted, with the second LPWAN RF module, to the external device over a second channel.