Abstract: This paper designs a tea-plucking and collection device. The device adopts reciprocating cutting blades to shear tea leaves, and the bud-leaves are sucked into the tea storage box through the cooperation of air ducts and a rear negative-pressure fan. This paper focuses on the parameter design of device components and carries out simulation analysis of the tea-shearing process to verify the safety and reliability of the device. The research results show that modal analysis of the cutting blade reveals that the 7th-12th-order natural frequencies range from 111.96 Hz to 1043.3 Hz. The operating frequency is 60 Hz, which is lower than 111.96 Hz with a difference of 51.96 Hz and a deviation above 25%, thus avoiding potential safety hazards caused by resonance during operation. The stress analysis on the fixed edge of the cutting blade indicates that the maximum deformation is 0.049 822 mm and the maximum stress is 213.18 MPa. The blade satisfies all mechanical safety requirements, which can provide a theoretical reference for the research of tea-plucking and collection devices.