An in-vivo information acquiring system, comprising: an in-vivo image acquiring apparatus that includes a first imager that serves to acquire image data, a second imager that serves to acquire image data which is formed independent of the image data acquired by the first imager, a transmission data generator that generates transmission data by receiving the image data from the first and the second imagers (12a, 12b) and adding identification data, which allows for identification of the imager (12a, 12b), to each piece of the image data, and a transmitter that performs radio transmission based on the transmission data generated by the transmission data generator; and a receiving apparatus that includes a receiver (34, A1 to An) that receives data transmitted by the transmitter, an identifying unit that identifies which imager (12a, 12b) picks up image data included in the data received by the receiver (34, A1 to An) based on the identification data added, and a storage unit that has divided storage areas and stores the image data in the storage areas according to the imagers (12a, 12b) identified by the identifying unit, wherein the receiving apparatus further includes an output unit that sequentially outputs the image data stored in the storage unit for each imagers (12a, 12b), and the in-vivo information acquiring system further comprises an image display apparatus that includes: - a capturing unit which captures the image data sequentially output by the output unit; - a display controller that controls display so that the image data captured by the capturing unit is displayed in separate display areas according to the imager (12a, 12b); characterized in that the transmitter transmits two pieces of image data picked up by the first and second plural imagers (12a, 12b), respectively, as an image data pair combined in one frame, and that the image display apparatus further includes: - a direction detector that finds a motion vector of each image sequence, and detects in which direction of the in-vivo image acquiring apparatus the image sequentially acquired from the receiving apparatus is picked up inside a body cavity, based on the motion vector. an in-vivo image acquiring apparatus that includes a first imager that serves to acquire image data, a second imager that serves to acquire image data which is formed independent of the image data acquired by the first imager, a transmission data generator that generates transmission data by receiving the image data from the first and the second imagers (12a, 12b) and adding identification data, which allows for identification of the imager (12a, 12b), to each piece of the image data, and a transmitter that performs radio transmission based on the transmission data generated by the transmission data generator; and a receiving apparatus that includes a receiver (34, A1 to An) that receives data transmitted by the transmitter, an identifying unit that identifies which imager (12a, 12b) picks up image data included in the data received by the receiver (34, A1 to An) based on the identification data added, and a storage unit that has divided storage areas and stores the image data in the storage areas according to the imagers (12a, 12b) identified by the identifying unit, wherein the receiving apparatus further includes an output unit that sequentially outputs the image data stored in the storage unit for each imagers (12a, 12b), and the in-vivo information acquiring system further comprises an image display apparatus that includes: - a capturing unit which captures the image data sequentially output by the output unit; - a display controller that controls display so that the image data captured by the capturing unit is displayed in separate display areas according to the imager (12a, 12b); characterized in that the transmitter transmits two pieces of image data picked up by the first and second plural imagers (12a, 12b), respectively, as an image data pair combined in one frame, and that the image display apparatus further includes: - a direction detector that finds a motion vector of each image sequence, and detects in which direction of the in-vivo image acquiring apparatus the image sequentially acquired from the receiving apparatus is picked up inside a body cavity, based on the motion vector. - a capturing unit which captures the image data sequentially output by the output unit; - a display controller that controls display so that the image data captured by the capturing unit is displayed in separate display areas according to the imager (12a, 12b); characterized in that the transmitter transmits two pieces of image data picked up by the first and second plural imagers (12a, 12b), respectively, as an image data pair combined in one frame, and that the image display apparatus further includes: - a direction detector that finds a motion vector of each image sequence, and detects in which direction of the in-vivo image acquiring apparatus the image sequentially acquired from the receiving apparatus is picked up inside a body cavity, based on the motion vector.