A metallic Langmuir-Blodgett (LB) film which does not require any secondary treatments obtained by using a charge-transfer complex of bis(ethylenedioxy)tetrathiafulvalene (BO) and decyltetracyanoquinodimethane (C(10)TCNQ) was examined. A strong band in the IR region was observed due to the conduction electron. The average charges of the C(10)TCNQ and BO in the LB film were -1 and +0.4, respectively, determined from the shift of the specific bands. The room-temperature conductivity of the film was 10 S/cm. The temperature dependence of conductivity of the film was well fitted by the formula sigma = AT(-alpha) exp(-E(g)/2k(B)T), which is related to an activation-type conduction within the domain boundaries of a granular-structured film. The temperature dependence of the thermoelectric power clearly shows the metallic nature of the film. The thermoelectric power was positive and in the range of 15 mu V/K at room temperature and tends to O mu V/K at O K : the behavior of the temperature dependence of the thermoelectric power was determined by that of the metallic domains of partially-charge-transferred BO.