Sample processing apparatus, measurement apparatus, and measurement method

The invention can prevent a user from mistakenly touching a temperature adjusting part in a sample processing device for heating a reaction container in a reaction process. A sample processing apparatus (1) for processing a sample stored in a reaction container (50) is provided with: an installation unit (10) in which the reaction container (50) is installed; a temperature adjustment unit (20) for heating the reaction container (50) installed in the installation unit (10); and an opening/closing member (40) capable of moving to a first position (P1) at which the temperature adjustment unit (20) is opened and a second position (P2) at which the temperature adjustment unit (20) is covered. 本发明能够于在反应工序中加热反应容器的样本处理装置中，防止用户误接触温度调节部。该样本处理装置（1）是一种对反应容器（50）中收放的样本进行处理的装置，其具备：供反应容器（50）设置的设置部（10）、对设置部（10）中设置的反应容器（50）进行加热的温度调节部（20）、能向开放温度调节部（20）的第1位置（P1）和覆盖温度调节部（20）的第2位置（P2）移动的开合构件（40）。