Bailing is the most effective production method for low output, low permeability, low efficiency, and remote wells. During the traditional bailing operation, due to the lack of supporting monitoring data, the BC is determined entirely by the operator's experience. There are no mathematical statistical methods for the amount of output fluid, the amount of oil, and the amount of leakage. The working state of the swab and the overall effect of bailing cannot be evaluated. In view of the limitations of the traditional bailing process, research on the integrated testing and bailing technology based on process diagnosis has been carried out from two perspectives: increasing oil production and reducing costs. A testing technology supporting the bailing process has been developed, and an evaluation method for bailing parameters has been established. This enables real-time monitoring of pressure, temperature, and the liquid levels of oil, gas, and water during the bailing process, as well as accurate calculation of the amount of output oil and the amount of leakage. By predicting the variation rule of the liquid level in the wellbore through formation parameters, comprehensive data support is provided for formulating a reasonable bailing cycle(BC), evaluating the bailing effect, and improving the bailing volume. This technology fills the gap in the lack of supporting testing technology for bailing processes at home and abroad. It has been implemented on-site for 79 wells, resulting in a cumulative increase in oil production of more than 12,191.6 tons, creating an economic benefit of 4.2111 million RMB, reducing the cost of vehicle by 1.1781 million RMB. It has broad application prospects and promotional value.