In 1955, New China awarded ranks to military commanders. When ranks were awarded, most generals were awarded corresponding ranks, and a small number of generals were lowered when formulating military ranks, such as Lu Rencan General.

Lu Rencan joined the revolution at the age of 14 and joined the Red Army in 1931. Because he had studied in a private school, he was assigned to do political work. Later, he was transferred to the Political Camp of the Red Army School and the Political Camp of the Gongluo Infantry School and to study.
1934, during the Long March of the Central Red Army, the Red Army School, the Gongliu Infantry School, etc. were merged into the cadre regiment, and he was in the cadre regiment to political scientists. When the Central Red Army went north to northern Shaanxi and changed to Shaanxi-Gansu Detachment , he served as the company instructor and the head of the division's political department. After the main forces of the three major Red Army met, they were transferred to the deputy director of the Political Department of the 91st Division of the 31st Army and the head of the Military Propaganda Section.

During the War of Resistance Against Japan, the Red 31st Army was reorganized into the position of head of the Education Section of the 772nd Regiment of the 386th Brigade of the 129th Division, director of the Political Department of the Regiment, political commissar of the regiment, director of the brigade political department, and deputy political commissar of the Military Sub-district. During the War of Liberation, he served as the director of the Political Department of the Third Column. After following Liu and Deng's army to advance into the Dabie Mountains, the 3rd Column opened the western Anhui base area. He was localized and served as the political commissar of the first division of the Anhui Military Region and the secretary of the prefectural committee and the secretary of the second district committee of Nanjing in 1949, when Liu and Deng's army advanced into the southwest, he served in the Southwest Service Group led by Song Renqiong and served as the political commissar of the cadre detachment. After liberation, he served as deputy director and director of the Political Department of the South Sichuan Military Region and political commissar of the 10th Army. Before awarding the title, the Navy was transferred to the position of political commissar of the Navy Qingdao Base, the Political Commissar of the North Sea Fleet, and the Deputy Political Commissar of the Navy.

Based on his qualifications, abilities and positions, his name was originally planned in 1955. Because the number of lieutenant generals was reported too much, the superior leader said: Young comrades still have a chance in the future! Therefore, the number of lieutenant generals was compressed, and some of the first designated lieutenant generals were moved to the major general, and Lu Rencan was in it.
Lu Rencan personally has no complaints about changing the lieutenant general to a major general. People who are familiar with him believe that the lieutenant general should be awarded according to his ability and qualifications, and some people mention him to stand up for the wrongdoing.

was awarded the second-level August 1 Medal, the second-level Independence and Freedom Medal , the first-level Liberation Medal said that his position during the war was not high. The second-level independence medal is generally awarded to the regiment-level commander during the War of Resistance Against Japan. He served as a deputy brigade position and was awarded the second-level medal, which was obviously a lack of record.
Since his decades of revolutionary career, Lu Rencan has worked in the rear for a long time. Compared with many front-line commanders who lead troops to fight, he has too few front-line achievements. After all, soldiers are measured by their achievements.