The invention discloses a next-generation broadcasting local-side controller modified by cable television network three-network fusion and belongs to the technical field of cable televisions. The next-generation broadcasting local-side controller comprises EOC (Ethernet Over Cable) local-side modules 1-4, radio frequency cables JP1-JP4, radio frequency seats J1-J7, joints IN1-IN4, OUT1-OUT4, AC60VIN, branch distribution plug-in units FP / FZ1-FP / FZ3, inductors L1-L36, inductors 1L1-1L8, overcurrent extension sockets CP1-CP8, discharge tubes D1-D9, capacitors C1-C29 and capacitors CC1-CC56. The next-generation broadcasting local-side controller has the advantages of small noise aggregation, high provided bandwidth, low average modification cost for each family and high reliability, is convenient in upgrade and expansion, and conforms to IP (Internet Protocol) base.