A method of producing an electrically conductive plastic molded article comprising blending 1 to 40 we. % of content shell fiber powder obtained by dry compressing a fiber contained in the mesocarp of the coconut fruit and processing the resulting fiber mass to 98 to 59 we. % of a biodegradable plastic or a non-biodegradable plastic, and adding 1 to 20 we. % of an electrically conductive additive. A molded article eliminating electrostatic troubles due to electrical chargeability, and improving biodegradable plastic is used, can be obtained.