The invention discloses a parallel non-zero coefficient context modeling method for binary arithmetic coding, and relates to a context modeling technology for video coding. The method is proposed to solve the problem that the data throughput rate of a coding system is reduced because the conventional binary arithmetic coding generates a data dependency relationship on the context in the context modeling process of non-zero coefficients. The method comprises the following steps of: 1, defining the number of coefficients and non-zero coefficients in a transform quantification block; 2, performing binarization on the non-zero coefficients to obtain a bin sequence; 3, performing context modeling on a first context according to the position information of the non-zero coefficients and the number of the non-zero coefficients in the transform quantification block; 4, calculating the probability distribution of the non-zero coefficients, the absolute value of which is abs (Li) in the first context value; 5, subtracting 1 from the absolute value of Li, and performing binarization; and 6, performing context modeling by using the equal probability distribution. By using the method, the context modeling processes of different non-zero coefficients can be simultaneously performed, and parallel execution of multiple context modeling processes in the coding process is realized.