An input-based information display method and an input system are provided. The method includes: using context information to perform recognition processing on a received input string, and recognizing a current semantic keyword; determining display information that matches the semantic keyword, and displaying the display information in a form of a pop-up bubble, where the display information includes but is not limited to expression images; and performing display processing on the display information according to an user instruction, where the display processing includes but is not limited to performing an enter-on-screen operation of the expression images. The recognized current semantic keyword of the present disclosure is not limited to a candidate item corresponding to the input string, and the semantic recognition based on the context information may better reflect the user input intention.