The invention provides an application search device, an application search method and an electronic device which aim at solving the problem that the obtained search result cannot meet the requirements of enterprise users when the enterprise users perform application search by the existing application search technology. The application search device comprises an information obtaining unit, a first calculation unit and a selection unit; the information obtaining unit is used for obtaining the registration information of the current enterprise user and the first browsing history and the rating information aiming at applications in a predetermined application library; the first calculation unit is used for calculating first preference scores to the applications in the predetermined application library of the current enterprise user based on the information; the selection unit is used for determining the search result based on the first preference scores and second preference scores to the applications in the predetermined application library of a plurality of former enterprise users. The application search method is used for executing the processing capable of achieving functions of the application search device. The electronic device comprises the application search device. The application search device, the application search method and the electronic device can be applied to the information processing field.