A method, system and device for implementing hybrid networking and a computer storage medium, herein the method includes: a femto cell sending an IP type to which the femto cell belongs to a femto cell gateway (601); the femto cell gateway acquiring the IP type to which the femto cell belongs, and acquiring IPV4 addresses and/or IPV6 addresses sent by an MME (602); the femto cell gateway sending an IP address matched with the IP type to which the femto cell belongs to the femto cell (603); and the femto cell acquiring the IP address sent by the femto cell gateway, and setting up a service bearer according to the IP address (604).