NOVELTY - Solid oxide fuel cell anode comprises: a porous permeable metal substrate (1); a diffusion barrier layer (2) disposed over the porous permeable metal substrate; and a nano-composite film (3) disposed over the diffusion barrier layer and having metal nanoparticles (31), metal oxide nanoparticles (32) and nano gas pores that are connected to form nano gas channels, where sizes of the metal nanoparticles are larger than the sizes of the metal oxide nanoparticles, preferably the sizes of the metal nanoparticles are 2-4 times of the sizes of the metal oxide nanoparticles.    USE - The solid oxide fuel cell anode is useful in home and car applications.    ADVANTAGE - The solid oxide fuel cell anode exhibits high stability, efficiency, mechanical strength, fragility, thermal shock resistance, thermal conductivity, workability, reliability, durability, electron conductivity, gas permeability and porosity.    DETAILED DESCRIPTION - Solid oxide fuel cell anode comprises: a porous permeable metal substrate (1); a diffusion barrier layer (2) disposed over the porous permeable metal substrate; and a nano composite film (3) disposed over the diffusion barrier layer and having metal nanoparticles (31), metal oxide nanoparticles (32) and nano gas pores that are connected to form nano gas channels, where sizes of the metal nanoparticles are larger than the sizes of the metal oxide nanoparticles, preferably the sizes of the metal nanoparticles are 2-4 times of the sizes of the metal oxide nanoparticles. The metal nanoparticles connect with one another to form a 3-dimensional (3D) electron conductive network while the metal oxide nanoparticles connect to form a 3D oxygen ion conductive network. The 3D electron conductive network and the 3D oxygen ion conductive network are interlaced or intermixed each other. The nano gas pores between the metal nanoparticles and the metal oxide nanoparticles are formed by hydrogen reduction. An INDEPENDENT CLAIM is included for manufacturing the anode comprising preheating the porous permeable metal substrate, forming the diffusion barrier layer by atmospheric plasma spraying the first powder clusters over the porous permeable metal substrate, forming the nano-composite film by atmospheric plasma spraying the second powder clusters over the diffusion barrier layer, and reducing the nano-composite film by hydrogen reduction.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a solid oxide fuel cell anode.    Porous permeable metal substrate (1)    Diffusion barrier layer (2)    Nano-composite film (3)    Metal nanoparticles (31)    Metal oxide nanoparticles. (32)