Abstract: To study the characteristics and laws of underwater explosion loads covering the entire depth scale, a theoretical model for calculating underwater explosion shock waves and bubble loads is established on the basis of the shock wave load calculation method and the unified form of bubble dynamics equation proposed by Zhang et al. The accuracy of the calculation results of the model is verified by the experimental and numerical results of underwater explosions at depths of hundreds of meters and kilometers. At the same time, this article explores the variation of shock wave and bubble load and energy distribution with water depth in underwater explosions. It is found that with the increase of water depth H, the peak value of shock wave psm slightly increases, and the attenuation time of shock wave Tatt gradually decreases. The negative pressure caused by pulsation is more obvious, and the proportion of shock wave and bubble energy decreases. The proportion of shock wave energy is related to the charge equivalent W, while the proportion of bubble energy is independent of W. The acoustic radiation loss during the first collapse and expansion process of bubbles decreases. Fitted functions are given for describing the relations of psm, Tatt, the pulsation period T and maximum radius Rm of underwater explosion bubbles between W and H. The calculation model of underwater explosion shock wave and bubble load used in this article can be applied to the calculation of underwater explosion load in the entire sea, and the results obtained can provide reference for deepwater explosion and structural anti explosion design.