The invention relates to the technical field of electronic component finishing equipment, in particular to a pin shearing device for a tape electronic component. The device is provided with a base; the base is provided with a feeding tank, so that the tape electronic component moves along the feeding tank; a coding unit, a pin finishing unit and a pin shearing unit are sequentially distributed on the feeding tank of the base. As an electronic component tape moves in the feeding tank of the base, the pin shearing device is good in orientation and stable in conveying and can continuously finish the pin shearing action, so that a production line can work more smoothly; through the coding unit, the pin finishing unit and the pin shearing unit, the adjustment of the electronic component position, the pin shape and the like is realized; then shearing is performed, and the effect of positioning, straightening and accurately measuring to-be-sheared pins is realized, so that the lengths of the sheared pins conform to the standard size, and the sheared pins can be uniform in length. The pin shearing device provided by the invention is simple in structure, scientific and reasonable, low in investment cost and simple and convenient to use and maintain and conforms to industrial production and utilization.