Transitionmetal oxides nanoparticles capsuled in amorphous carbon nanotubes (ACNTs) are attractive anode materials of lithium ion batteries (LIBs). Here we firstly designed a fast and universal method with a hydromechanics conception which is called Marangoni flow to fabricating transition bimetal oxides (TBOs) in ACNTs composite with a better electrochemistry performance. Maragoni flows can produce a liquid column with several centimeters high in a tube with one side immersion in the liquid. The key point to induce a Marangoni flow is to make a gradient of the surface tension between the surface and the inside of the solution. With our research, we control the gradient of the surface tension by control the viscosity of a solution. In order to show our method could be general used, we synthesis two anode materials such as (a)CoFe2O4@ACNTs, (b) NiFe2O4@ACNTs. All of these have a similar morphology which is ~20 ?m length and with a diameter of 80-100 nm of the ACNTs and the particles (inside ACNTs) is smaller than 5 nm. Specially there are amorphous carbon between the nanoparticle. All the composite materials showed outstanding electrochemistry performance which have a high capacity and cycling stability for what after 600 cycle the capacity changed less than 3%.