Abstract: The initial state of pinch load in vacuum was monitored successfully in experiments about wire array loads. New and old load configurations were used to carry out contrast studies, and the nanosecond-frame camera was used to record images about different plasma implosion phases. Influences on electrode configuration and the initial state of pinch load were discussed by analysing experimental results. The experimental results show that fixing time was shortened and coaxality was controlled easily by using the new load electrode configuration. They also show that the dispersibility of experimental data decreased by using new load electrode configuration and monitoring the initial state of pinch load in vacuum. The study provides technical support for optimization design of load parameters.