In this paper, we propose a no-reference stereoscopic video quality assessment (NR-SVQA) based on human vision system (HVS). Firstly, we build a frequency transform module (FTM), which maps spatial domain to frequency domain by cosine discrete transform (DCT), and selects important frequency components through channel attention mechanism. Secondly, we use dynamic convolution to regionally process the same input. Thirdly, we use convolutional long short term memory (Conv-LSTM) to extract spatio-temporal information rather than just temporal information. Finally, in order to better simulate the visual characteristics of human eyes, we build a optic chiasm module. The experiment results show that our method outperforms any other methods.