Camellia fruit picking machine is a mechanical system working in the environment of non-structural. Combined with the Camellia tree's biological characteristics and the factors such as cultivation patterns etc., the boundary method was used to solve the working space of fruit pick actuator machine, and the optimization objectives that were set up to meet the minimum picking machine working space and the minimum sum of all arm length, thus obtaining the optimal actuators structure parameters. Through solving the positive solutions of actuator m...