According to one aspect of the invention, an eyeball biological information collection device that is arranged to be worn by a subject includes a ultrasonic sensor part and a pressing part. The ultrasonic sensor part is configured to transmit an ultrasonic wave to an eyeball of the subject and receive a reflection wave of the ultrasonic wave reflected within the eyeball at a time of use of the eyeball biological information collection device. The pressing part is configured to press the ultrasonic sensor part to eyelid of the subject at the time of use.
