The utility model relates to a hand-held harvest machine, and belongs to the technical field of agricultural machines. The hand-held harvest machine comprises a support, a handle is fixedly connected to the upper portion of the support, a motor with a downward output shaft is arranged in the middle of the support, and a horizontal upper gear shaving type cutter and a horizontal lower gear shaving type cutter are arranged on the lower portion of the support. The output shaft of the motor is connected with a vertical eccentric wheel shaft through a coupler, and the eccentric wheel shaft is respectively in transmission connection with the upper cutter and the lower cutter through a pair of eccentric wheels with angular positions staggered. A collecting bag is opened on the rear lower side of the upper cutter and the rear lower side of the lower cutter. In the work process, the motor drives the eccentric wheel shaft to rotate through the coupler, then the eccentric wheels drive the upper cutter and the lower cutter to do reciprocating opposite motion, vegetables to be harvested are cut off, and the cut vegetables fall into the collecting bag. Therefore, the needed harvesting work can be completed efficiently simply by operating the upper cutter and the lower cutter of the harvest machine to do reciprocating sweeping motion in a vegetable field.