A producing method of reinforced electrospinning nanofiber membrane, which comprises following steps: 1) Preparing polymer spinning solutions: two or more types of polymers wherein any two of them have a melting point (T m) difference of at least 20 °C, are respectively dissolved into their excellent solvents, wherein the polymers comprises a thermoplastic polymer with a lower melting point; Wherein the polymers are stirred homogeneously, then stood up for 1-2 hours, forming several spinning solutions for back up; 2) Cross-blending electrospinning: polymer solutions prepared in step are fed into their spinning system respectively, the cross-blending electrospinning being performed under the same receiving distance, spinning voltage and spinning environment, wherein the cross-blending electrospinning is an alternative blending electrospinning in which multiple polymer spinning jets are arranged alternately on a same spinning plate, wherein the spinning jets of multiple polymers come from different spinning needles of multi-needle electrospinning device/apparatus, different orifices of multi-orifice electrospinning device/apparatus, or different spinning heads of needleless electrospinning device/apparatus, and are arranged alternately along the movement of receiving device in forth-back, or alternately arranged along the width direction of the product in left-right, and after webs are formed, electrospun nanofibers of multiple polymers are in random cross configuration; 3) Thermal calendering point bonding: thermal calendering is employed to bond the blending electrospun nanofiber web, after blending electrospinning, thus obtained multi-component blending electro-spun membranes are thermal calendaring bonded under certain temperature and pressure such that after thermal calendering to the multi-component blending electrospun membrane, reinforced electrospinning nanofiber membrane is obtained; wherein the temperature of thermal calendering is 2~10 °C higher than the melting point of the polymer with the lowest melting point in the two or more polymer, and lower than the melting point of the polymer with the second lower melting point in the two or more polymers. 1) Preparing polymer spinning solutions: two or more types of polymers wherein any two of them have a melting point (T m) difference of at least 20 °C, are respectively dissolved into their excellent solvents, wherein the polymers comprises a thermoplastic polymer with a lower melting point; Wherein the polymers are stirred homogeneously, then stood up for 1-2 hours, forming several spinning solutions for back up; 2) Cross-blending electrospinning: polymer solutions prepared in step are fed into their spinning system respectively, the cross-blending electrospinning being performed under the same receiving distance, spinning voltage and spinning environment, wherein the cross-blending electrospinning is an alternative blending electrospinning in which multiple polymer spinning jets are arranged alternately on a same spinning plate, wherein the spinning jets of multiple polymers come from different spinning needles of multi-needle electrospinning device/apparatus, different orifices of multi-orifice electrospinning device/apparatus, or different spinning heads of needleless electrospinning device/apparatus, and are arranged alternately along the movement of receiving device in forth-back, or alternately arranged along the width direction of the product in left-right, and after webs are formed, electrospun nanofibers of multiple polymers are in random cross configuration; 3) Thermal calendering point bonding: thermal calendering is employed to bond the blending electrospun nanofiber web, after blending electrospinning, thus obtained multi-component blending electro-spun membranes are thermal calendaring bonded under certain temperature and pressure such that after thermal calendering to the multi-component blending electrospun membrane, reinforced electrospinning nanofiber membrane is obtained;