In view of the lack of detection standards for forward scattering visibility meters in meteorological industry, the laboratory test method of forward scattering visibility meters is studied. In this paper, the working principles of the forward scattering visibility meter is introduced; the composition and technical requirements of the measuring standard equipment are expounded; the testing items and testing methods of forward scattering visibility meters are described in detail; and the indoor measured results of several forward scattering visibility meters are presented. The results show that it is feasible to measure the measurement range and indication error by simulating the visibility in the test chamber, and the transmission instrument can be selected as the measuring standard. The response time can be measured by placing a scattering plate or a mask to generate a sudden signal.