The invention provides a network switching method, a mobile network system and a mobile management device; wherein the network switching method comprises: the mobile management equipment on the target side acquires the related anchor point information of the currently used user plane anchor point equipment of a home network or a visit network; the mobile management equipment on the target side selects the corresponding mobile anchor point equipment on the target side according to the related anchor point information of the currently used user plane anchor point equipment of a home network or a visit network and triggers the mobile anchor point equipment to construct connection with the user plane anchor point equipment. The technical proposal provided by the invention embodiment can ensure successful and rapid construction of user plane carrier on the target side.