To facilitate human body impedance measurements for the calculation of body fat ratio at each part through a plurality of measuring courses by attaching electrodes to predetermined portions of the inside of clothing, and simply wearing the clothing.

A fabric material of great flexibility is sewn to form a suit 11 for the upper part of the body and tights 12 for the lower part of the body. Planar four-terminal electrodes A1, A2-E1, E2 are mounted therein and the suit 11 and the tights 12 are made to snugly fit the body, with the four-terminal electrodes A1, A2-E1, E2 pressed against predetermined portions of the body. A conducting hook (a) electrically connected to the four-terminal electrodes A1, A2-E1, E2 is attached to the outside of body fat measuring clothing 1. A cord (b) is freely removably connected to the conducting hook (a) at one end and connected to a human body impedance measuring device 2 at the other end via a connector 3 attached to the waist.