Key input device

The invention provides key input equipment. The key input equipment comprises a key input equipment main body and a plurality of electric heating sheets, the key input equipment main body is provided with a plurality of keys, and each key in the plurality of keys is connected with each electric heating sheet in the plurality of electric heating sheets in a one-to-one correspondence manner; the plurality of keys are divided into a first group of keys and a second group of keys, and the keys in the first group of keys are different from the keys in the second group of keys; the plurality of electric heating sheets are connected with the first group of keys and are used for heating the keys in the first group of keys, so that the keys in the first group of keys reach a first temperature; and the plurality of electric heating sheets are connected with the second group of keys and are used for heating the keys in the second group of keys, so that the keys in the second group of keys reach a second temperature. By