NOVELTY - Synthesizing biodiesel with high-speed counter-current reactor comprises: (a) preparing dissociative enzyme solution, solid phase carrier immobilized enzyme suspension, and micelle or reversed micelle covering enzyme; (b) determining constituents of the immobile phase and mobile phase; (c) preparing immobile phase and mobile phase; (d) adding the enzyme preparation to the chosen phase containing enzyme; (e) pumping immobile phase to spiral tubular pile; (f) starting high-speed spiral tubular pile; (g) pumping mobile phase; (h) using circumfluence operation; and (i) processing extraction.    USE - The process is useful for synthesizing biodiesel with high-speed counter-current reactor (claimed).    ADVANTAGE - The process provides improvement to apparatus when actualizing expanded production. Moreover, in the process, the two liquid phases carries out the high-frequency mixing and clarifying to strengthen contact and the transmission rate between enzyme or microorganism and fatty acid substrate to improve conversion rate of the substrate. Additionally, the enzyme activity inhibition caused by accumulation of high-concentration substrate or product is reduced to accelerate reaction and improve conversion rate of the substrate by choosing operation mode and coupling extraction and reverse extraction process.    DETAILED DESCRIPTION - Synthesizing biodiesel with high-speed counter-current reactor comprises: (a) preparing dissociative enzyme solution, solid phase carrier immobilized enzyme suspension, and micelle or reversed micelle covering enzyme; (b) determining constituents of the immobile phase and mobile phase comprising forms of enzymes, dissolving condition of substrate and product in water phase and organic phase, viscosity and delamination time of two phase fluid, and simple degree of operation according to constituents of biodiesel synthesis reaction system and split-phase characteristics; (c) respectively preparing immobile phase and mobile phase not added with enzyme preparation, processing ultrasonic deaeration for 15 minutes, and standing it for more than 30 minutes; uniformly mixing two phases in a separating funnel for solvents having a stated mutual soluble rate between the immobile phase and mobile phase, standing to delaminate for more than 2 hours to separate light phase and heavy phase, and processing ultrasonic deaeration; (d) adding the enzyme preparation to the chosen phase containing enzyme, uniformly dispersing it, and adjusting adding dosage of the enzyme preparation according to the enzyme activity; (e) pumping the immobile phase to spiral tubular pile of the high-speed counter-current reactor in the velocity of 8.0-10.0 L/minute through a constant flow pump, and continuing pumping until the tubular pile is full and immobile phase flows from the exit; (f) starting the high-speed spiral tubular pile to positively rotate the immobile phase when it is light phase and reversely rotate it when it is heavy phase, and controlling the rotor speed as 300-900 rotations/minute, and adjusting the rotor speed according the preserving condition of the immobile phase; (g) pumping the mobile phase in with the velocity of 0.5-2.0 ml/minute, and adjusting the velocity of it according to the preserving condition of the immobile phase and the reaction time needed in finishing target conversion rate; (h) using circumfluence operation for solving the problem that there is limited number of theoretical plate in the existing apparatus; and (i) processing extraction or reverse extraction to directly collect liquid containing product, volatilizing the solvent or removing moisture to obtain product, and analyzing the conversation rate.