To solve problems of a method of assembling a car external surface member of an elevator for observation wherein the aesthetic appearance of the external surface member is poor since it is waved, which is undesirable for design, and a tremendously long time is required for correcting it.

In this method of assembling a car external surface member of an elevator for observation, when a car 1 in which a car floor is assembled to a car frame is engaged with guide rails 2, a bob (weight) 4 is suspended from the outer upper part of the car along the car. By using the bob as a mounting reference, the external surface member is installed.