Solution processible graphene oxide nanoribbions (GONRs) with continuously one-dimensional length and remaining carbon nanotubes (CNTs) has been synthesized by partially unzipping from multiwalled carbon nanotubes (MWCNTs). Such low-cost GONRs hybridized with CNTs (GONR/CNT) shows solution processibility and conductivity as well as tunable work function and multifunctional interfacial modification in the polymer solar cells (PSCs) due to well-defined nanoribbons containing CNTs with continuously one-dimensional length and promoting the charge transporting, different from the GONR unzipped from single-walled carbon nanotubes tending to form large amount of graphene oxide pieces. Incorporation of the GONR/CNT into the solution processed PSCs as electron transporting layer (ETL) and hole transporting layer (HTL) simultaneously delivers a high device performance with long-term stability. The results demonstrate that the multifunctional GONR/CNT unzipped from MWCNTs would be a promising interfacial materials for solution processed high performance PSCs.