the present disclosure relates to the electronic communication field and discloses a dual - mode device and a method for achieving the simultaneous communication therein . the dual - mode device has a dual - mode protocol stack scheduling mechanism and uniformly schedules the transmission event of the bluetooth protocol stack and the zigbee protocol stack . the method comprising the following steps : after matching the dual - mode device with a bluetooth host as a slave and the zigbee target device as a control device , the dual - mode device conducting the bluetooth connection maintenance according to preset interval and processing the information exchange with the zigbee target device at each bluetooth connection interval . compared to the prior art , the present disclosure allows the smart devices to support two types of communication protocols , achieves the interaction between the smart devices using the two different wireless standards , and greatly improves the communication efficiency of network with the bluetooth and zigbee devices .