Japanese naval aircraft attacked the Hangzhou Military Airport on the 26th. Chinese aircraft rose up to fight and shot down 2 enemy attack aircraft. The Chinese artillery in Wusong, Shizilin and other places also engaged in fierce gunfire with the Japanese ships. On the 27th, the Japanese army broke through from the direction of Jiangwan Town. The defending 61st Division suffered excessive casualties and retreated to rest and recuperate. The defense was taken over by the 88th and 87th Divisions. The Japanese army still could not continue to advance.
As the advance of the invading army was blocked, the Japanese military command sent the 11th Division to reinforce. The advance force of the division, escorted by the Navy's 2nd Destroyer Squadron, arrived in Wusong on the 28th. The next day, General Shirakawa Yoshinori, commander of Japan's Shanghai Expeditionary Force, led the headquarters, directly affiliated troops and the main force of the 11th Division. Under the escort of the 4th Marine Corps, they arrived at the mouth of the Yangtze River and succeeded Ueda Kenkichi as the supreme commander of the Japanese army invading Shanghai. Despite the massive increase in Japanese troops, the Chinese authorities did not send reinforcements to Shanghai. After the enemy's 11th Division arrived in Shanghai, they immediately launched an attack and captured Luwo Bay. The enemy Marines engaged in a tug-of-war with the defenders near the Bazi Bridge. The defenders lost three times and gained three times, causing heavy casualties on both sides. At the same time, the Japanese warships bombarded Qiyakou and other places, destroyed the Shizilin Fort, and sent aircraft to reconnoiter the landing point near Chaihe. They also sent three Japanese warships to Zhapu in Hangzhou Bay to divert attention.
At dawn on March 1, the Japanese 9th Division, 24th Brigade and Marine Corps launched another fierce attack on Miaohang, west of Jiangwan and Zhabei. Japanese ships shelled the defenders at Shizilin, Yanglinkou, and Qiyakou, and Japanese planes also dropped a large number of bombs on the defenders' positions. The main force of the enemy's 11th Division took the warships of the 3rd Fleet and the 1st Destroyer Fleet up the river and landed near Qiyakou. At that time, there was only one battalion of the teaching corps and volunteers guarding the 20-kilometer river defense line in Qiyakou, Yanglinkou, Liuhe and Xiaochuansha, and the strength was very thin. Although Jiang's defenders tried their best to resist, the powerful enemy soon broke through the defensive position. The Chinese Army Command urgently mobilized the 261st Brigade in Tianwan and Tangqiao to rush for reinforcements. However, the unit only had 11 vehicles and was bombed by enemy planes along the way. It was not until 18:00 that a regiment arrived at Liuhe.
At this time, all the enemy troops had landed ashore and occupied the floating bridge and Qianjing Camp. The defenders here were attacked from both sides. Casualties also increased sharply on the Zhabei-Miaohang front line, and there was no hope of reinforcements. So they abandoned their positions at 23:00 and retreated to the Huangbo, Fangtai, Jiading, and Taicang lines, and then to the Kunshan-Changshu line. On March 2, the enemy's 11th Division captured Liuhe, the 9th Division occupied Dachang, and the Marine Corps occupied Zhabei. The next day, the Japanese Marine Corps, with fire support from aircraft and naval guns, captured the Wusong Fort. The enemy's 9th Division occupied Zhenru, and coordinated with the 24th Brigade to occupy Nanxiang. The 22nd Regiment of the Japanese 1st Division attacked Jiading from the south gate. The Chinese army retreated to the second line of defense, west of the Qingyang River and along the Kunshan and Fushan lines. After the Japanese troops occupied the Liuhe, Jiading, Nanxiang, and Zhenru lines, they stopped advancing and conducted a "mopping up" of the occupied areas. At 14:00 on March 8, Shirakawa Yoshinori issued a "Ceasefire Statement." On the 6th, Jiang Guangnai issued a "Ceasefire Announcement". Starting from the 6th, the 1st Division of Japanese reinforcements came ashore in Wusong. On the 7th, the two sides began to cease fighting.
On May 5, representatives from China and Japan signed the "Songhu Armistice Agreement", which stipulated that the Chinese army would stay in place and not enter Shanghai. The Japanese Marine Corps would withdraw to Hongkou and the Army would leave Shanghai.
In this battle, the Japanese Army lost 620 people and injured 1,622 people; the Japanese Navy lost 149 people and injured 700 people, accounting for 17% of the combat personnel. The Chinese army suffered 4,086 casualties, 8,584 wounded, and 756 missing, accounting for 22% of those who participated in the war. There were also more than 15,000 civilian casualties. Although the Chinese military and civilians did not achieve the expected victory in this battle against the Japanese landing, they effectively dealt a blow to the aggressors and made the three commanders pay a huge price, and promoted the further rise of our country's anti-Japanese and national salvation movement.