Abstract:The loss rate of fruit in China is as high as 20%-30%. Thus it is urgent to extend the shelf life of fruit by constructing bio-based fruit preservation film. A bio-based zein-cinnamaldehyde（Z-CA）fruit preservation film with high specific surface area was prepared by electrospinning，to explore the interaction between zein and cinnamaldehyde. The effects of different cinnamaldehyde concentrations on the microscopic morphology，hydrophobicity，ethylene adsorption，and bacterial inhibition of Z-CA film were also studied. The freshkeeping performance of Z-CA film on bananas was evaluated. It was found that there was a hydrogen bonding between zein and cinnamaldehyde. The electrospun Z-550CA film had good fiber morphology，ethylene adsorption efficiency （[7.73±1.57）mg（/m3·h）]，hydrophobicity（131.14±7.96）°，and antibacterial property，thereby effectively extending the shelf life of bananas.