An image scanning apparatus, comprising: an array photosensitive pixel unit , configured to receive at least one optical signal; and a control circuit , connected with the array photosensitive pixel unit , and configured to control the array photosensitive pixel unit to receive the at least one optical signal; wherein the image scanning apparatus is a contact image sensor; characterised in that the control circuit comprises: a control switch controlling the array photosensitive pixel unit to receive the at least one optical signal with a lighting pulse signal synchronous with a control pulse signal of an LED; wherein the control switch is configured to: within each row period of the contact image sensor, when the control pulse signal of the LED is at a high level, control the lighting pulse signal to be at a high level, control the array photosensitive pixel unit to be in a light receiving open state, control the array photosensitive pixel unit to receive reflected lights of an original and convert to charges for storage, wherein the reflected lights are the lights reflected by the original which is irradiated by lights given out under the control pulse signal of the LED; wherein the control switch is configured to: within each row period of the contact image sensor, when the control pulse signal of the LED is at a low level, control the lighting pulse signal to be at a low level, control the array photosensitive pixel unit to be in a light receiving close state, control the array photosensitive pixel unit no longer receive any lighting information, and no longer change a charge quantity stored. an array photosensitive pixel unit , configured to receive at least one optical signal; and a control circuit , connected with the array photosensitive pixel unit , and configured to control the array photosensitive pixel unit to receive the at least one optical signal; wherein the image scanning apparatus is a contact image sensor; characterised in that the control circuit comprises: a control switch controlling the array photosensitive pixel unit to receive the at least one optical signal with a lighting pulse signal synchronous with a control pulse signal of an LED; wherein the control switch is configured to: within each row period of the contact image sensor, when the control pulse signal of the LED is at a high level, control the lighting pulse signal to be at a high level, control the array photosensitive pixel unit to be in a light receiving open state, control the array photosensitive pixel unit to receive reflected lights of an original and convert to charges for storage, wherein the reflected lights are the lights reflected by the original which is irradiated by lights given out under the control pulse signal of the LED; wherein the control switch is configured to: within each row period of the contact image sensor, when the control pulse signal of the LED is at a low level, control the lighting pulse signal to be at a low level, control the array photosensitive pixel unit to be in a light receiving close state, control the array photosensitive pixel unit no longer receive any lighting information, and no longer change a charge quantity stored. <EOS>