There is provided a simplified analyzer including a see-through hermetic container having powdery or granular color reaction reagent, and a tap member partially inserted in the hermetic container in an extractable state. The tap member is provided at one end with a finger stopper larger in diameter than another portion, so as to be drawn out while holding the finger stopper with user's fingers to form a through hole for letting air out of the hermetic container and applying suction to the testing liquid to be analyzed. By using the tap member prepared in advance, the through hole having a suitable diameter for applying suction to the testing liquid to be analyzed can be formed at the appropriate point in the container. According to the analyzer of the invention, differences among individuals in performing an analyzing test do not occur.