PROBLEM TO BE SOLVED: To provide a biological information collection device which can collect accurate biological information on a model organism.SOLUTION: A slave machine 3 is used with it implanted in a body of a model organism S and includes: a temperature sensor 34; a triaxial acceleration sensor 35; control means 361 which generates biological data on the model organism S on the basis of sensor values from sensors 34, 35; and a communication connection unit 33 which wirelessly transmits the biological data to a parent machine 4. The temperature sensor 34, the triaxial acceleration sensor 35, and the control means 361 actuate by means of receiving power supply from a coin battery B.【課題】モデル生体の正確な生体情報を収集できる生体情報収集装置の提供【解決手段】子機3はモデル生体Sの体内に埋め込まれて使用され、温度センサ34と、3軸加速度センサ35と、センサ34,35からのセンサ値に基づきモデル生体Sの生体データを生成する制御手段361と、生体データを親機4へ無線で送信する通信接続部33と、を備える。温度センサ34、3軸加速度センサ35、及び制御手段361は、コイン電池Bからの電力供給を受けて作動する。【選択図】図1