Telling the truth and doing practical things is the most effective way to test and cultivate party spirit. Yao Yunhui regards telling the truth and doing practical things as a habit to cultivate, as a quality to refine, as a realm to pursue, and as a responsibility to assume. President Xi Jinping attaches great importance to telling the truth and doing practical things, and collaborates in different fields to produce a series of important discussions. Party spirit is the cornerstone of the establishment, career, speech, and morality of Communist Party members. It has never been abstract but concrete, not empty but rich in meaning. Our party has always advocated telling the truth and doing practical things, as an important content of party spirit cultivation and training. At the Su Yu Comrade Memorial Hall in Tongtong County, Hunan Province, there is a registration form personally filled out by Comrade Su Yu in 1933. Among them, "occupation of parents and brothers" is filled in as "small landowners", "family economic situation" is filled in as "having over four hundred burdens of land, all of which are rented and exploited by family members for a living", and "whether they have been punished within the party" is filled in as "being warned once". 'Landlord', 'rent collection', and 'warning and punishment' are extremely sensitive words, but Su Yu still truthfully reported his situation to the party organization. In 1941, Wang Zhen led the 359th Brigade into Nanniwan and took the lead in the mass production movement. He personally worked hard and persisted in reclaiming land with his hands covered in blood bubbles. He led his officers and soldiers to turn the desolate Nanniwan into the "good Jiangnan" of northern Shaanxi. The practical actions of the older generation of revolutionaries in telling the truth and doing practical things have shown us the strong party spirit that a Communist Party member should possess. President Xi Jinping pointed out that "adhering to the principle of starting from reality and seeking truth from facts is not only a matter of ideological methods, but also a problem of strong party spirit." To tell the truth and do practical things, it is inseparable from the word "truth". In essence, it is a manifestation of adhering to the principle of seeking truth from facts. Whether party members and cadres can seek truth from facts in their work, whether they are thorough or not, reflects the purity of party spirit of party members and cadres, and also affects the development of the party and the country's cause. Striving forward on a new journey, our country's development prospects are very bright, but the road cannot be smooth sailing, and we will inevitably face various difficulties and tests. If party members and cadres have impure party spirit and only rely on their own "small calculations", or are afraid of speaking and doing things, afraid to take responsibility, or are lying or doing false work, engaging in formalism and bureaucracy, in the long run, it will inevitably lead to bad atmosphere and hinder career development. Therefore, we must vigorously promote the style of seeking truth from facts, adhere to the principle of party spirit at all times and in all circumstances, and truly achieve the goal of telling the truth and doing practical things, so that the light of party spirit can illuminate the way forward. Honesty is evident in telling the truth and doing practical things. Loyalty to the Party is the primary political quality of Communist Party members, and it is the core and soul of Party spirit. A large number of facts indicate that a person who dares to speak the truth and is capable of doing practical things is a person who truly entrusts oneself to the organization and strives for ideals and beliefs, and is a person with strong party spirit and absolute loyalty to the party. Party members and cadres must